diff --git a/.editorconfig b/.editorconfig
index 38e1f93c0a8e..1ec20131ec03 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -44,6 +44,8 @@ max_line_length = 100
 indent_style = space
 indent_size = 4
 max_line_length = 120
+ij_kotlin_allow_trailing_comma = true
+ij_kotlin_allow_trailing_comma_on_call_site = true
 
 [*.{html,xhtml,htm,xml,xul,svg}]
 indent_style = space
diff --git a/build.gradle b/build.gradle
index 82c9ccbcd21e..3183b33a31a8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -325,13 +325,6 @@ subprojects { project ->
                 }
                 googleJavaFormat(libs.versions.google.java.format.get())
             }
-            kotlin {
-                target project.fileTree(project.projectDir) {
-                    include '**/*.kt'
-                    exclude '**/thirdparty/**'
-                }
-                ktlint("${libs.versions.ktlint.get()}").setEditorConfigPath("${topsrcdir}/mobile/android/geckoview/.editorconfig")
-            }
         }
 
         // Work around https://github.com/diffplug/spotless/issues/1958 by
@@ -390,15 +383,15 @@ tasks.register("lint") {
     description = "Runs lint on all mobile projects."
     mobileProjects.each { dependsOn "${it}:lint" }
 }
-tasks.named("ktlint").configure {
+tasks.named("ktfmtCheck").configure {
     group = "verification"
-    description = "Runs ktlint on all mobile projects."
-    mobileProjects.each { dependsOn "${it}:ktlint" }
+    description = "Runs ktfmtCheck on all mobile projects."
+    mobileProjects.each { dependsOn "${it}:ktfmtCheck" }
 }
-tasks.named("ktlintFormat").configure {
+tasks.named("ktfmtFormat").configure {
     group = "formatting"
-    description = "Runs ktlintFormat on all mobile projects."
-    mobileProjects.each { dependsOn "${it}:ktlintFormat" }
+    description = "Runs ktfmtFormat on all mobile projects."
+    mobileProjects.each { dependsOn "${it}:ktfmtFormat" }
 }
 tasks.named("detekt").configure {
     group = "verification"
diff --git a/docs/code-quality/lint/linters/android-format.md b/docs/code-quality/lint/linters/android-format.md
index 749faf0bde2c..5bb2f1c2eb8b 100644
--- a/docs/code-quality/lint/linters/android-format.md
+++ b/docs/code-quality/lint/linters/android-format.md
@@ -6,7 +6,7 @@ for Gradle and Android.
 In our current configuration, Spotless includes the
 [Google Java Format plug-in](https://github.com/google/google-java-format)
 which formats all our Java code using the Google Java coding style guidelines,
-and [ktlint](https://ktlint.github.io/) which formats all
+and [ktfmt](https://github.com/Kotlin/ktfmt) which formats all
 our Kotlin code using the official Kotlin coding convention and Android Kotlin
 Style Guide.
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 9c2354614aa8..accc308000b9 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -83,7 +83,6 @@ androidx-lint = "1.0.0"
 detekt = "1.23.8"
 google-java-format = "1.28.0"
 ktfmt = "0.64"
-ktlint = "1.8.0"
 spotless = "8.9.0"
 
 # Mozilla
@@ -264,7 +263,6 @@ detekt-cli = { module = "io.gitlab.arturbosch.detekt:detekt-cli", version.ref =
 detekt-test = { module = "io.gitlab.arturbosch.detekt:detekt-test", version.ref = "detekt" }
 google-java-format = { module = "com.google.googlejavaformat:google-java-format", version.ref = "google-java-format" }
 ktfmt = { module = "com.facebook:ktfmt", version.ref = "ktfmt" }
-ktlint = { module = "com.pinterest.ktlint:ktlint-cli", version.ref = "ktlint" }
 spotless-plugin = { module = "com.diffplug.spotless:spotless-plugin-gradle", version.ref = "spotless" }
 
 # Mozilla
diff --git a/mobile/android/android-components/.editorconfig b/mobile/android/android-components/.editorconfig
deleted file mode 100644
index 42be19627b78..000000000000
--- a/mobile/android/android-components/.editorconfig
+++ /dev/null
@@ -1,40 +0,0 @@
-# This is an .editorconfig that ktlint will "stop" at.
-
-# If an .editorconfig file exists in any parent directory of the checkout
-# directory, ktlint will fail because it uses those settings to determine what
-# the indentation should be.
-
-root = True
-
-[*.{kt,kts}]
-ij_kotlin_allow_trailing_comma_on_call_site=true
-ij_kotlin_allow_trailing_comma=true
-indent_size = 4
-indent_style = space
-insert_final_newline = true
-
-ktlint_argument_list_wrapping_ignore_when_parameter_count_greater_or_equal_than = 13
-ktlint_function_naming_ignore_when_annotated_with=Composable
-
-# disabled rules we should decide whether to enable or not
-ktlint_standard_annotation = disabled
-ktlint_standard_blank-line-before-declaration = disabled
-ktlint_standard_blank-line-between-when-conditions = disabled
-ktlint_standard_chain-method-continuation = disabled
-ktlint_standard_class-signature = disabled
-ktlint_standard_enum-wrapping = disabled
-ktlint_standard_function-expression-body = disabled
-ktlint_standard_function-signature = disabled
-ktlint_standard_if-else-wrapping = disabled
-ktlint_standard_indent = disabled
-ktlint_standard_multiline-expression-wrapping = disabled
-ktlint_standard_no-empty-first-line-in-class-body = disabled
-ktlint_standard_statement-wrapping = disabled
-ktlint_standard_string-template-indent = disabled
-ktlint_standard_when-entry-bracing = disabled
-
-# rules that enforce style we don't want
-ktlint_standard_backing-property-naming = disabled # it would force making backed properties public.
-ktlint_standard_expression-operand-wrapping = disabled # noisy and doesn't improve readability much
-ktlint_standard_max-line-length = disabled # already enabled in detekt
-ktlint_standard_no-consecutive-comments = disabled # it would limit one line comments to one per line
diff --git a/mobile/android/android-components/README.md b/mobile/android/android-components/README.md
index ffe886b08a0e..8d5ddda15837 100644
--- a/mobile/android/android-components/README.md
+++ b/mobile/android/android-components/README.md
@@ -292,12 +292,12 @@ If your build fails, you may find you get more instructive error messages by att
 # Coding Standards #
 
 ## Style ##
-We follow the style enforced by [ktlint](https://ktlint.github.io/) and [detekt](https://github.com/detekt/detekt). See [how to configure Android Studio appropriately](https://pinterest.github.io/ktlint/latest/install/setup/).
+We follow the style enforced by [ktfmt](https://github.com/Kotlin/ktfmt) and [detekt](https://github.com/detekt/detekt). See [how to configure Android Studio appropriately](https://github.com/Kotlin/ktfmt#intellij-android-studio-and-other-jetbrains-ides).
 
 To check your style, run:
 
 ```
-./gradlew ktlint
+./gradlew ktfmtCheck
 ./gradlew detekt
 ```
 
diff --git a/mobile/android/android-components/build.gradle b/mobile/android/android-components/build.gradle
index ce28e5e727b8..6083764705ed 100644
--- a/mobile/android/android-components/build.gradle
+++ b/mobile/android/android-components/build.gradle
@@ -18,7 +18,6 @@ plugins {
 }
 
 mozilla {
-    ktlintSourcePaths = ["components/**/*.kt", "samples/**/*.kt", "buildSrc/**/*.kt", "!**/build/**/*.kt"]
     ktfmtSourcePaths = ["components/**/*.kt", "samples/**/*.kt", "buildSrc/**/*.kt", "!**/build/**/*.kt"]
     detektSourcePaths = [
         "**/components/**/*.kt", "**/buildSrc/**/*.kt", "**/samples/**/*.kt",
diff --git a/mobile/android/android-components/components/lib/crash/src/androidTest/java/mozilla/components/lib/crash/service/GleanCrashReporterServiceTest.kt b/mobile/android/android-components/components/lib/crash/src/androidTest/java/mozilla/components/lib/crash/service/GleanCrashReporterServiceTest.kt
index 05f9d0675615..35a383fa5b6f 100644
--- a/mobile/android/android-components/components/lib/crash/src/androidTest/java/mozilla/components/lib/crash/service/GleanCrashReporterServiceTest.kt
+++ b/mobile/android/android-components/components/lib/crash/src/androidTest/java/mozilla/components/lib/crash/service/GleanCrashReporterServiceTest.kt
@@ -2,10 +2,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-// We allow wildcard imports as a convenience for the many json extension
-// methods used.
-@file:Suppress("ktlint:standard:no-wildcard-imports")
-
 package mozilla.components.lib.crash.service
 
 import android.content.Context
diff --git a/mobile/android/android-components/components/tooling/lint/src/main/java/mozilla/components/tooling/lint/LicenseCommentChecker.kt b/mobile/android/android-components/components/tooling/lint/src/main/java/mozilla/components/tooling/lint/LicenseCommentChecker.kt
index fb3b8b2a16b3..b9b2a6f38a46 100644
--- a/mobile/android/android-components/components/tooling/lint/src/main/java/mozilla/components/tooling/lint/LicenseCommentChecker.kt
+++ b/mobile/android/android-components/components/tooling/lint/src/main/java/mozilla/components/tooling/lint/LicenseCommentChecker.kt
@@ -15,7 +15,6 @@ import org.jetbrains.uast.UFile
 class LicenseCommentChecker(private val context: JavaContext) : UElementHandler() {
 
     companion object {
-        @Suppress("ktlint:standard:wrapping")
         val ValidLicenseForKotlinFiles = """
             |/* This Source Code Form is subject to the terms of the Mozilla Public
             | * License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/mobile/android/android-components/config/pre-push-hook b/mobile/android/android-components/config/pre-push-hook
index 1b24f805f220..96acf24ff3ab 100755
--- a/mobile/android/android-components/config/pre-push-hook
+++ b/mobile/android/android-components/config/pre-push-hook
@@ -1,2 +1,2 @@
-./gradlew detekt ktlint
+./gradlew detekt ktfmtCheck
 
diff --git a/mobile/android/android-components/docs/contribute/hosting_code_in_repository.md b/mobile/android/android-components/docs/contribute/hosting_code_in_repository.md
index c4d0ab02e508..a3434f931d5c 100644
--- a/mobile/android/android-components/docs/contribute/hosting_code_in_repository.md
+++ b/mobile/android/android-components/docs/contribute/hosting_code_in_repository.md
@@ -56,7 +56,7 @@ The *Android components* team evaluates, integrates and maintains tools that run
 
 Currently we are using:
 * [Android Lint](https://developer.android.com/studio/write/lint) - *"Android Lint is a tool which scans Android project sources for potential bugs."*
-* [ktlint](https://github.com/shyiko/ktlint) - *"An anti-bikeshedding Kotlin linter with built-in formatter"*
+* [ktfmt](https://github.com/Kotlin/ktfmt) - *"A pretty printer for the Kotlin programming language"*
 * [detekt](https://github.com/arturbosch/detekt) - *"A static code analysis tool for the Kotlin programming language"*
 
 In addition to that the *Android components* team started to write [custom lint rules](https://github.com/mozilla-mobile/firefox-android/tree/main/android-components/components/tooling/lint) that enforce component related rules (e.g. "Use the provided logging class in components instead of android.util.Log").
diff --git a/mobile/android/android-components/tools/pre-push-recommended.sh b/mobile/android/android-components/tools/pre-push-recommended.sh
index 8e244ed73e59..33569b8d544a 100755
--- a/mobile/android/android-components/tools/pre-push-recommended.sh
+++ b/mobile/android/android-components/tools/pre-push-recommended.sh
@@ -15,6 +15,6 @@
 # output of `./gradlew tasks`.
 
 ./gradlew -q \
-        ktlint \
+        ktfmtCheck \
         detekt \
         testToolsDir
diff --git a/mobile/android/docs/index.md b/mobile/android/docs/index.md
index 63579265e6d1..cde70084e683 100644
--- a/mobile/android/docs/index.md
+++ b/mobile/android/docs/index.md
@@ -139,7 +139,7 @@ native code. [Bug
 making Android Studio and Gradle do this automatically.
 
 If you want set up code formatting for Kotlin, please reference
-[IntelliJ IDEA configuration](https://pinterest.github.io/ktlint/rules/configuration-intellij-idea/).
+[IntelliJ IDEA configuration](https://github.com/Kotlin/ktfmt#intellij-android-studio-and-other-jetbrains-ides).
 
 ## Mobile Devices and Emulators
 
diff --git a/mobile/android/docs/shared/android/automation.md b/mobile/android/docs/shared/android/automation.md
index e8987acb3eca..0401429e42a0 100644
--- a/mobile/android/docs/shared/android/automation.md
+++ b/mobile/android/docs/shared/android/automation.md
@@ -46,7 +46,7 @@ For Kotlin only projects, run these tools:
 
 * Android lint
 * [detekt](https://github.com/arturbosch/detekt)
-* [ktlint](https://github.com/shyiko/ktlint)
+* [ktfmt](https://github.com/Kotlin/ktfmt)
 
 For projects that also include Java, add these tools:
 
diff --git a/mobile/android/docs/shared/android/writing_lint_rules.md b/mobile/android/docs/shared/android/writing_lint_rules.md
index f89b7caa24a1..79495a7079dd 100644
--- a/mobile/android/docs/shared/android/writing_lint_rules.md
+++ b/mobile/android/docs/shared/android/writing_lint_rules.md
@@ -9,7 +9,6 @@ If you get into trouble, _ask for help!_ These APIs can be confusing to get star
 We have a few common lint systems for Mozilla Android apps:
 
 - **detekt:** (probably) the go-to for analyzing Kotlin code
-- **ktlint:** similar to detekt but use it instead if you don't want your lint rule to be suppressed, ever
 - **android lint:** most useful when analyzing more than Kotlin code: Android-specific concerns (e.g. resource XML files), Gradle files, ProGuard files, etc. It is slow because it needs to compile the project and does multiple passes over the code; however, if your new lint check needs multiple passes, it can be useful.
 - **Gradle tasks + hand-rolled check:** less performant but probably more familiar for devs to write. Use if you can't figure out how to use one of the other tools or if you're short on time
 
@@ -46,11 +45,6 @@ Execution failed for task ':detekt'.
 
 detekt is lacking good documentation for writing custom rules: to understand how to write lint rules, look at our custom rules and the source of the rules built into detekt. You can also use `println` to output values inside `visit*` methods to understand what is available (ideally we can figure out how to launch a debugger to analyze it at runtime but we haven't yet).
 
-## ktlint
-
-TODO: fill this out!
-
-We haven't written any ktlint rules so we're lacking knowledge here.
 
 ## Android Lint
 
diff --git a/mobile/android/fenix/.editorconfig b/mobile/android/fenix/.editorconfig
deleted file mode 100644
index 69adfb09a4a2..000000000000
--- a/mobile/android/fenix/.editorconfig
+++ /dev/null
@@ -1,30 +0,0 @@
-[*.{kt,kts}]
-ij_kotlin_allow_trailing_comma_on_call_site=true
-ij_kotlin_allow_trailing_comma=true
-insert_final_newline = true
-
-ktlint_argument_list_wrapping_ignore_when_parameter_count_greater_or_equal_than = 13
-ktlint_function_naming_ignore_when_annotated_with=Composable
-
-# disabled rules we should decide whether to enable or not
-ktlint_standard_annotation = disabled
-ktlint_standard_blank-line-before-declaration = disabled
-ktlint_standard_blank-line-between-when-conditions = disabled
-ktlint_standard_chain-method-continuation = disabled
-ktlint_standard_class-signature = disabled
-ktlint_standard_enum-wrapping = disabled
-ktlint_standard_function-expression-body = disabled
-ktlint_standard_function-signature = disabled
-ktlint_standard_if-else-wrapping = disabled
-ktlint_standard_indent = disabled
-ktlint_standard_multiline-expression-wrapping = disabled
-ktlint_standard_no-empty-first-line-in-class-body = disabled
-ktlint_standard_statement-wrapping = disabled
-ktlint_standard_string-template-indent = disabled
-ktlint_standard_when-entry-bracing = disabled
-
-# rules that enforce style we don't want
-ktlint_standard_backing-property-naming = disabled # it would force making backed properties public.
-ktlint_standard_expression-operand-wrapping = disabled # noisy and doesn't improve readability much
-ktlint_standard_max-line-length = disabled # already enabled in detekt
-ktlint_standard_no-consecutive-comments = disabled # it would limit one line comments to one per line
diff --git a/mobile/android/fenix/app/build.gradle b/mobile/android/fenix/app/build.gradle
index cfd208096e75..66599af2628e 100644
--- a/mobile/android/fenix/app/build.gradle
+++ b/mobile/android/fenix/app/build.gradle
@@ -782,7 +782,6 @@ def getSupportedLocales() {
 }
 
 mozilla {
-    ktlintSourcePaths = ["src/**/*.kt", "!**/build/**/*.kt"]
     ktfmtSourcePaths = ["src/**/*.kt", "!**/build/**/*.kt"]
     detektSourcePaths = [
         "**/src/**/*.kt",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/AddToHomeScreenSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/AddToHomeScreenSelectors.kt
index 214f385dbec0..d6566b99aaf0 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/AddToHomeScreenSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/AddToHomeScreenSelectors.kt
@@ -29,7 +29,7 @@ object AddToHomeScreenSelectors {
         groups = listOf("systemPromptItem"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun HOME_SCREEN_SHORTCUT(shortcutTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR2_BY_TEXT,
         value = shortcutTitle,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BookmarksSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BookmarksSelectors.kt
index 894b3bc60dda..573502d8564b 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BookmarksSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BookmarksSelectors.kt
@@ -145,7 +145,7 @@ object BookmarksSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun MULTI_SELECTION_COUNTER(count: Int = 0) = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = "$count selected",
@@ -153,7 +153,7 @@ object BookmarksSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun ITEM_MENU(title: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = "Item Menu for $title",
@@ -161,7 +161,7 @@ object BookmarksSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun BOOKMARK_ITEM(title: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT_MERGED,
         value = title,
@@ -169,7 +169,7 @@ object BookmarksSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun EXPAND_FOLDER_BUTTON(folderTitle: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = getStringResource(R.string.bookmark_select_folder_expand_folder_content_description, folderTitle),
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BrowserPageSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BrowserPageSelectors.kt
index 01b81ab115f1..e228139f89b7 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BrowserPageSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/BrowserPageSelectors.kt
@@ -101,7 +101,7 @@ object BrowserPageSelectors {
         groups = listOf("tabCrashReporter"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun PAGE_CONTENT(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = text,
@@ -112,7 +112,7 @@ object BrowserPageSelectors {
     // An item on the GeckoView text-selection floating action bar (and the app's paste popup),
     // matched by exact visible text. Mirrors the legacy clickContextMenuItem, which located items
     // with By.text(item) — covers "Select all", "Copy", "Search", "Private Search", "Paste".
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun TEXT_SELECTION_CONTEXT_MENU_ITEM(item: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR2_BY_TEXT,
         value = item,
@@ -207,7 +207,7 @@ object BrowserPageSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun PREFILLED_USERNAME(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_WEB_ID_AND_TEXT,
         value = "username",
@@ -216,7 +216,7 @@ object BrowserPageSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun PREFILLED_PASSWORD(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_WEB_ID_AND_TEXT,
         value = "password",
@@ -232,7 +232,7 @@ object BrowserPageSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SUGGESTED_LOGIN(username: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = username,
@@ -294,7 +294,7 @@ object BrowserPageSelectors {
 
     // A saved-address suggestion row in the autofill prompt, keyed by the substring shown in its
     // name/title (e.g. the street address). App View: package-prefixed res-id + textContains.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun ADDRESS_SUGGESTION(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_CONTAINING_TEXT,
         value = "address_name",
@@ -305,7 +305,7 @@ object BrowserPageSelectors {
 
     // Assertion helper: the web street-address field is populated with the expected value.
     // Raw web DOM id + exact text.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun AUTOFILLED_STREET_ADDRESS(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_WEB_ID_AND_TEXT,
         value = "streetAddress",
@@ -336,7 +336,7 @@ object BrowserPageSelectors {
 
     // A saved-card suggestion row in the autofill prompt, keyed by the last digits shown in its masked
     // number. App View: package-prefixed res-id + textContains.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun CREDIT_CARD_SUGGESTION(lastDigits: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_CONTAINING_TEXT,
         value = "credit_card_number",
@@ -347,7 +347,7 @@ object BrowserPageSelectors {
 
     // Assertion helper: the web card-number field is populated with the expected value. Raw web DOM id
     // + exact text.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun AUTOFILLED_CREDIT_CARD(number: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_WEB_ID_AND_TEXT,
         value = "cardNumber",
@@ -383,7 +383,7 @@ object BrowserPageSelectors {
     )
 
     // Title of the "open link in another app" prompt, parameterized by the target app name.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun OPEN_IN_APP_PROMPT(appName: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = getStringResource(
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CollectionsSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CollectionsSelectors.kt
index 8e3796cf1061..d8fa615581c1 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CollectionsSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CollectionsSelectors.kt
@@ -18,7 +18,7 @@ object CollectionsSelectors {
         groups = listOf("tabsTrayCollectionsSection"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun EXISTING_COLLECTION_WITH_TITLE(collectionTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT,
         value = collectionTitle,
@@ -33,7 +33,7 @@ object CollectionsSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun COLLECTION_WITH_TITLE(collectionTitle: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = collectionTitle,
@@ -41,7 +41,7 @@ object CollectionsSelectors {
         groups = listOf("collectionItem"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun COLLECTION_TAB_WITH_TITLE(tabTitle: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = tabTitle,
@@ -49,7 +49,7 @@ object CollectionsSelectors {
         groups = listOf("collectionTabItem"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun COLLECTION_TAB_WITH_URL(url: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT_SUBSTRING,
         value = url,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CustomTabsSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CustomTabsSelectors.kt
index 32fc19b346c6..a92856fef8e1 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CustomTabsSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/CustomTabsSelectors.kt
@@ -106,7 +106,7 @@ object CustomTabsSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun MENU_CUSTOM_ITEM(label: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = label,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/DownloadsSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/DownloadsSelectors.kt
index f29e6267cc56..840a51969cc1 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/DownloadsSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/DownloadsSelectors.kt
@@ -105,7 +105,7 @@ object DownloadsSelectors {
      * within ~5.5s, so a slow-but-landed click looks identical to a miss. A dump at one such "failure"
      * showed the link holding input focus — the tap had worked. Waiting is the caller's job here.
      */
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun DOWNLOAD_LINK(fileName: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR2_BY_DESCRIPTION_CONTAINS,
         value = fileName,
@@ -116,7 +116,7 @@ object DownloadsSelectors {
     // --- Downloads list rows (Compose; keyed off DownloadsListTestTag in main source) ---
 
     /** The Downloads-list row for [fileName]; the screen tags each row with the file name. */
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun DOWNLOADED_FILE_LIST_ITEM(fileName: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TAG,
         value = "${DownloadsListTestTag.DOWNLOADS_LIST_ITEM}.$fileName",
@@ -129,7 +129,7 @@ object DownloadsSelectors {
      * outside the Downloads list: the download link on the test page and the completion snackbar.
      * Device-level because the snackbar's file-name node is not reliably in the Compose tree.
      */
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun FILE_NAME_TEXT(fileName: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = fileName,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/FindInPageSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/FindInPageSelectors.kt
index 5b99f282e39e..97dfa5e17afd 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/FindInPageSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/FindInPageSelectors.kt
@@ -45,7 +45,7 @@ object FindInPageSelectors {
         groups = listOf("requiredForPage"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun RESULT_COUNTER(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = text,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/HomeSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/HomeSelectors.kt
index 19d5559c0e64..cec9c16d3b62 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/HomeSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/HomeSelectors.kt
@@ -109,7 +109,7 @@ object HomeSelectors {
         groups = listOf("privateBrowsingHomeScreen"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun TOP_SITE_ITEM(topSiteTitle: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_ON_ALL_NODES_BY_TAG_WITH_CHILD_TEXT_ON_FIRST,
         value = "top_sites_list.top_site_item",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/MainMenuSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/MainMenuSelectors.kt
index f6b2797dbd32..f9478229b9b1 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/MainMenuSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/MainMenuSelectors.kt
@@ -212,7 +212,7 @@ object MainMenuSelectors {
     // The "Add <addon>" install icon on a recommended addon row in the expanded Extensions submenu.
     // Keyed on the addon name because there is no test tag on the install icon (see AddonMenuItem);
     // matched at the device level like the legacy installRecommendedAddon (itemWithDescription).
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun RECOMMENDED_ADDON_INSTALL_BUTTON(addonTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_DESCRIPTION_CONTAINS,
         value = getStringResource(R.string.browser_menu_extension_plus_icon_content_description_2, addonTitle),
@@ -234,7 +234,7 @@ object MainMenuSelectors {
     // The collapsed Extensions main-menu row once an extension is installed: it advertises the addon
     // name in its content description. Mirrors the legacy verifyExtensionsButtonWithInstalledExtension
     // (itemWithResIdAndDescription("mainMenu.extensions", <addon>)).
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun EXTENSIONS_BUTTON_WITH_INSTALLED_EXTENSION(addonTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_AND_DESCRIPTION_CONTAINS,
         value = MenuDialogTestTag.EXTENSIONS,
@@ -245,7 +245,7 @@ object MainMenuSelectors {
 
     // The installed extension row in the expanded Extensions submenu. Mirrors the legacy
     // verifyInstalledExtension (hasTestTag(WEB_EXTENSION_ITEM) + content description contains <addon>).
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun INSTALLED_EXTENSION_ITEM(addonTitle: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TAG_AND_CONTENT_DESCRIPTION_SUBSTRING,
         value = MenuDialogTestTag.WEB_EXTENSION_ITEM,
@@ -370,7 +370,7 @@ object MainMenuSelectors {
         groups = listOf("browserViewMainMenuMoreItems", "moreMainMenuSubList"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun OPEN_IN_APP_NAME_BUTTON(appName: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = getStringResource(R.string.browser_menu_open_in_fenix, appName),
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/NotificationSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/NotificationSelectors.kt
index cd21208212d6..cfbab53296f6 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/NotificationSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/NotificationSelectors.kt
@@ -64,7 +64,7 @@ object NotificationSelectors {
     )
 
     // Matched by text anywhere in the shade — a notification's title or body.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SYSTEM_NOTIFICATION(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = text,
@@ -73,7 +73,7 @@ object NotificationSelectors {
     )
 
     // The collapsed notification's top line, used as the swipe handle to expand it.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun NOTIFICATION_TOP_LINE(text: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RAW_RES_ID_CONTAINING_TEXT,
         value = "android:id/notification_top_line",
@@ -92,7 +92,7 @@ object NotificationSelectors {
     // clicks via clickAndSync and reports failure when no window update lands inside its ~5.5s budget --
     // a slow-but-successful pause would then throw. UiObject2.click() just injects the gesture (see the
     // strategy note in Selector.kt); the resulting state is asserted separately.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun MEDIA_NOTIFICATION_CONTROL_BUTTON(action: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR2_BY_DESCRIPTION_CONTAINS,
         value = action,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/RecentlyClosedTabsSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/RecentlyClosedTabsSelectors.kt
index 494bcd4c98ef..cc57aef4a296 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/RecentlyClosedTabsSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/RecentlyClosedTabsSelectors.kt
@@ -27,7 +27,7 @@ object RecentlyClosedTabsSelectors {
         groups = listOf("emptyRecentlyClosedTabsList"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun RECENTLY_CLOSED_ITEM(title: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_AND_TEXT,
         value = "title",
@@ -36,7 +36,7 @@ object RecentlyClosedTabsSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun RECENTLY_CLOSED_ITEM_URL(url: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = url,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SearchBarSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SearchBarSelectors.kt
index fb0fe3e94be9..b76a55542c9f 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SearchBarSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SearchBarSelectors.kt
@@ -37,7 +37,7 @@ object SearchBarSelectors {
     // An engine row inside the search-selector popup menu. Each row exposes the plain engine name as
     // its content-description (mirrors the legacy verifySearchShortcutList / selectTemporarySearchMethod
     // which matched hasContentDescription(engineName)).
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SEARCH_SELECTOR_MENU_ENGINE(engineName: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = engineName,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAddonsManagerSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAddonsManagerSelectors.kt
index bcd81abb4a3a..841daad709d0 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAddonsManagerSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAddonsManagerSelectors.kt
@@ -46,7 +46,7 @@ object SettingsAddonsManagerSelectors {
     // the addon name via its content description. requiresScroll so the framework scrolls the row into
     // view before clicking (mirrors the legacy addonsList().scrollIntoView) — needed for add-ons below
     // the fold. Mirrors the legacy installButtonForAddon (withContentDescription("Install <addon>")).
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun INSTALL_ADDON_BUTTON(addonTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_DESCRIPTION_CONTAINS,
         value = "Install $addonTitle",
@@ -74,7 +74,7 @@ object SettingsAddonsManagerSelectors {
 
     // Title of the add-on install permission dialog ("Add <addon>"). Keyed on the addon name via a
     // text-contains match on the shared dialog "title" id, mirroring the legacy verifyAddonPermissionPrompt.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun ADDON_PERMISSION_PROMPT_TITLE(addonTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_CONTAINING_TEXT,
         value = "title",
@@ -86,7 +86,7 @@ object SettingsAddonsManagerSelectors {
     // Title of the install-completed dialog ("<addon> was added"). The addon's display name may be
     // longer than the recommended-list name (e.g. "Bitwarden" -> "Bitwarden Password Manager"), so a
     // text-contains match on the short name matches both. Mirrors legacy verifyAddonInstallCompletedPrompt.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun ADDON_INSTALL_COMPLETED_TITLE(addonTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_CONTAINING_TEXT,
         value = "title",
@@ -106,7 +106,7 @@ object SettingsAddonsManagerSelectors {
 
     // An installed add-on row in the add-ons manager list, keyed on its name label. A text-contains
     // match on the short name tolerates the longer display name shown in the list.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun INSTALLED_ADDON_ITEM(addonTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_CONTAINING_TEXT,
         value = "add_on_name",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAutofillSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAutofillSelectors.kt
index f64d2c1e2149..5851f526ef96 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAutofillSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsAutofillSelectors.kt
@@ -129,7 +129,7 @@ object SettingsAutofillSelectors {
         groups = listOf("deleteAddress"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SAVED_ADDRESS(name: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = name,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsDeleteBrowsingDataSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsDeleteBrowsingDataSelectors.kt
index 07c922f43ee6..a0e2c8842901 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsDeleteBrowsingDataSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsDeleteBrowsingDataSelectors.kt
@@ -74,7 +74,7 @@ object SettingsDeleteBrowsingDataSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun OPEN_TABS_DETAILS(count: String = "0") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT,
         value = "$count tabs",
@@ -82,7 +82,7 @@ object SettingsDeleteBrowsingDataSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun BROWSING_HISTORY_DETAILS(addresses: String = "0") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT_CONTAINS,
         value = "$addresses addresses",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsHomepageSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsHomepageSelectors.kt
index 849333b7e7b8..6630b59b55fe 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsHomepageSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsHomepageSelectors.kt
@@ -59,7 +59,7 @@ object SettingsHomepageSelectors {
         groups = listOf("homepageSettings"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun OPENING_SCREEN_OPTION(openingScreenOption: String = "") = Selector(
         strategy = SelectorStrategy.ESPRESSO_BY_ID_WITH_SIBLING_TEXT,
         value = "radio_button",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSavedPasswordsSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSavedPasswordsSelectors.kt
index 0720f5648f6c..6f25bb553b52 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSavedPasswordsSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSavedPasswordsSelectors.kt
@@ -61,7 +61,7 @@ object SettingsSavedPasswordsSelectors {
         groups = listOf("loginDetails"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SAVED_LOGIN_ENTRY(username: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = username,
@@ -69,7 +69,7 @@ object SettingsSavedPasswordsSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun LOGIN_DETAILS_PASSWORD(password: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TAG_AND_TEXT,
         value = LOGIN_DETAILS_PASSWORD_TEXT_FIELD,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchDefaultSearchEngineSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchDefaultSearchEngineSelectors.kt
index b073cb10bfa5..7c69236e2d82 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchDefaultSearchEngineSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchDefaultSearchEngineSelectors.kt
@@ -14,7 +14,6 @@ object SettingsSearchDefaultSearchEngineSelectors {
         groups = listOf("requiredForPage"),
     )
 
-    @Suppress("ktlint:standard:function-naming")
     fun DEFAULT_SEARCH_ENGINE_OPTION(engineName: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_RES_ID_AND_TEXT,
         value = "engine_text",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchManageShortcutsSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchManageShortcutsSelectors.kt
index 9ea461b1e441..dfce3f5cde1b 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchManageShortcutsSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSearchManageShortcutsSelectors.kt
@@ -21,7 +21,7 @@ object SettingsSearchManageShortcutsSelectors {
     )
 
     // A single engine row in the shortcuts list, keyed by the engine name (the row's Text node).
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SEARCH_ENGINE_SHORTCUT(engineName: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = engineName,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSelectors.kt
index d89236068332..929ebc52e7ee 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/SettingsSelectors.kt
@@ -299,7 +299,7 @@ object SettingsSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SETTING_OPTION_SUMMARY(settingName: String = "", settingSummary: String = "") = Selector(
         strategy = SelectorStrategy.ESPRESSO_BY_TEXT_WITH_SIBLING_TEXT,
         value = settingName,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabDrawerSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabDrawerSelectors.kt
index 0b2566c82c01..d372f9edc507 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabDrawerSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabDrawerSelectors.kt
@@ -163,7 +163,6 @@ object TabDrawerSelectors {
         groups = listOf("createTabGroupView"),
     )
 
-    @Suppress("ktlint:standard:function-naming")
     fun CREATE_TAB_GROUP_COLOR_BUTTON(color: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = color,
@@ -185,7 +184,6 @@ object TabDrawerSelectors {
         groups = listOf("addToTabGroupView"),
     )
 
-    @Suppress("ktlint:standard:function-naming")
     fun ADD_TO_EXISTING_TAB_GROUP_BUTTON(title: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = title,
@@ -193,7 +191,6 @@ object TabDrawerSelectors {
         groups = listOf("addToTabGroupView"),
     )
 
-    @Suppress("ktlint:standard:function-naming")
     fun TAB_GROUP_ITEM(
         tabGroupTitle: String = "",
         numberOfTabs: Int = 1,
@@ -306,7 +303,6 @@ object TabDrawerSelectors {
         groups = listOf("tabItem"),
     )
 
-    @Suppress("ktlint:standard:function-naming")
     fun TAB_ITEM_WITH_TITLE(tabTitle: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_ON_ALL_NODES_BY_TAG_WITH_CHILD_TEXT_ON_FIRST,
         value = TabsTrayTestTag.TAB_ITEM_ROOT,
@@ -324,7 +320,6 @@ object TabDrawerSelectors {
         groups = listOf("tabSelectionThreeDotMainMenu"),
     )
 
-    @Suppress("ktlint:standard:function-naming")
     fun SELECTION_COUNTER(numberOfTabs: Int = 0) = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = getStringResource(R.string.tab_tray_multi_select_title, numberOfTabs),
@@ -372,7 +367,6 @@ object TabDrawerSelectors {
     // Tab search results render via FaviconListItem (title passed as a merged `label`), so the
     // tag+child-text TAB_ITEM_WITH_TITLE can't locate them the way it does grid tab items; match the
     // title text directly, as the legacy robot did with onNodeWithText.
-    @Suppress("ktlint:standard:function-naming")
     fun TAB_SEARCH_RESULT(tabTitle: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = tabTitle,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabHistorySelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabHistorySelectors.kt
index a089afba83bc..432991e1a6d2 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabHistorySelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/TabHistorySelectors.kt
@@ -27,7 +27,6 @@ object TabHistorySelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming")
     fun TAB_HISTORY_ITEM(url: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT,
         value = url,
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/ToolbarSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/ToolbarSelectors.kt
index 90e6af463ff2..5ce4edfa2e50 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/ToolbarSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/ToolbarSelectors.kt
@@ -131,7 +131,7 @@ object ToolbarSelectors {
     // An item in the context menu shown after long-pressing the display-mode (browser) URL box, e.g.
     // "Copy", "Paste", "Paste & Go". Mirrors the legacy clickDisplayModeToolbarContextMenuItem, which
     // matched these by content description on the Compose toolbar.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun DISPLAY_MODE_TOOLBAR_MENU_ITEM(contentDescription: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = contentDescription,
@@ -139,7 +139,7 @@ object ToolbarSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun SEARCH_ENGINE_SELECTOR_ICON(searchEngineName: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = getStringResource(R.string.search_engine_selector_content_description, searchEngineName),
@@ -163,7 +163,7 @@ object ToolbarSelectors {
 
     // UIAutomator rather than Compose: this is asserted on BrowserPage with GeckoView active, where
     // Compose sync can hang (same reason TAB_COUNTER_UIAUTOMATOR exists).
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun TAB_COUNTER_WITH_COUNT(openTabs: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_DESCRIPTION_CONTAINS,
         value = "Non-private Tabs Open: $openTabs",
@@ -174,7 +174,7 @@ object ToolbarSelectors {
     // UIAutomator rather than Compose: asserted on BrowserPage with GeckoView active (see
     // TAB_COUNTER_WITH_COUNT). The capitalized "Private Tabs Open:" is distinct from the normal
     // counter's "Non-private Tabs Open:" fragment, so a description-contains match won't cross over.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun PRIVATE_TAB_COUNTER_WITH_COUNT(openTabs: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_DESCRIPTION_CONTAINS,
         value = "Private Tabs Open: $openTabs",
@@ -182,7 +182,7 @@ object ToolbarSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun TAB_STRIP_TAB_COUNTER_WITH_COUNT(openTabs: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = "Non-private Tabs Open: $openTabs. Tap to switch tabs.",
@@ -196,7 +196,7 @@ object ToolbarSelectors {
     // accessibility tree lags the Compose tree by seconds for the counter, so a UIAutomator check can
     // still read the old count while Compose already shows the new one. Mirrors the legacy
     // BrowserRobot.verifyTabCounter, which read the counter via composeTestRule.onNodeWithContentDescription.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun TAB_COUNTER_COMPOSE_WITH_COUNT(openTabs: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = "Non-private Tabs Open: $openTabs. Tap to switch tabs.",
@@ -204,7 +204,7 @@ object ToolbarSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun PRIVATE_TAB_COUNTER_COMPOSE_WITH_COUNT(openTabs: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_CONTENT_DESCRIPTION,
         value = "Private Tabs Open: $openTabs. Tap to switch tabs.",
@@ -212,7 +212,7 @@ object ToolbarSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun TAB_STRIP_TAB(tabTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_TEXT,
         value = tabTitle,
@@ -220,7 +220,7 @@ object ToolbarSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun TAB_STRIP_CLOSE_TAB_BUTTON(tabTitle: String = "") = Selector(
         strategy = SelectorStrategy.UIAUTOMATOR_WITH_DESCRIPTION_CONTAINS,
         value = "Close tab $tabTitle",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/UnifiedTrustPanelSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/UnifiedTrustPanelSelectors.kt
index 8ee629456641..30cbb288415e 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/UnifiedTrustPanelSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/UnifiedTrustPanelSelectors.kt
@@ -28,7 +28,7 @@ object UnifiedTrustPanelSelectors {
         groups = listOf("clearCookiesAndSiteDataDialog"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun CLEAR_COOKIES_AND_SITE_DATA_DIALOG_DESCRIPTION(webSite: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = HtmlCompat.fromHtml(
@@ -56,7 +56,7 @@ object UnifiedTrustPanelSelectors {
     // ── Site identity ───────────────────────────────────────────────────────
     // Match the unique testTag AND the text. Text alone is ambiguous — the host also renders in the
     // address bar (gotcha A7) — but tag alone would stop asserting which site the panel is describing.
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun WEBSITE_TITLE(webSite: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TAG_AND_TEXT,
         value = "unified.trust.panel.website",
@@ -65,7 +65,7 @@ object UnifiedTrustPanelSelectors {
         groups = listOf(),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun WEBSITE_URL(webSiteURL: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TAG_AND_TEXT,
         value = "unified.trust.panel.website.url",
diff --git a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/WebCompatReporterSelectors.kt b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/WebCompatReporterSelectors.kt
index d18fc9d4a62e..f257e1439dea 100644
--- a/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/WebCompatReporterSelectors.kt
+++ b/mobile/android/fenix/app/src/androidTest/java/org/mozilla/fenix/ui/efficiency/selectors/WebCompatReporterSelectors.kt
@@ -41,7 +41,7 @@ object WebCompatReporterSelectors {
         groups = listOf("reporterViewItems"),
     )
 
-    @Suppress("ktlint:standard:function-naming", "FunctionName")
+    @Suppress("FunctionName")
     fun REPORTED_SITE_URL(url: String = "") = Selector(
         strategy = SelectorStrategy.COMPOSE_BY_TEXT,
         value = url,
diff --git a/mobile/android/fenix/build.gradle b/mobile/android/fenix/build.gradle
index 38a920706fa3..bdae2171598f 100644
--- a/mobile/android/fenix/build.gradle
+++ b/mobile/android/fenix/build.gradle
@@ -26,7 +26,6 @@ plugins {
 }
 
 mozilla {
-    ktlintSourcePaths = ["app/src/**/*.kt", "!**/build/**/*.kt"]
     ktfmtSourcePaths = ["app/src/**/*.kt", "!**/build/**/*.kt"]
 }
 
diff --git a/mobile/android/fenix/config/pre-push-recommended.sh b/mobile/android/fenix/config/pre-push-recommended.sh
index beaa45d8b067..8e522a38a8db 100755
--- a/mobile/android/fenix/config/pre-push-recommended.sh
+++ b/mobile/android/fenix/config/pre-push-recommended.sh
@@ -27,7 +27,7 @@ fi
 # - UI tests
 # - android lint (takes a long time to run)
 ./gradlew -q \
-        ktlint \
+        ktfmtCheck \
         detekt \
         assembleDebug \
         assembleDebugAndroidTest \
diff --git a/mobile/android/focus-android/.editorconfig b/mobile/android/focus-android/.editorconfig
deleted file mode 100644
index 69adfb09a4a2..000000000000
--- a/mobile/android/focus-android/.editorconfig
+++ /dev/null
@@ -1,30 +0,0 @@
-[*.{kt,kts}]
-ij_kotlin_allow_trailing_comma_on_call_site=true
-ij_kotlin_allow_trailing_comma=true
-insert_final_newline = true
-
-ktlint_argument_list_wrapping_ignore_when_parameter_count_greater_or_equal_than = 13
-ktlint_function_naming_ignore_when_annotated_with=Composable
-
-# disabled rules we should decide whether to enable or not
-ktlint_standard_annotation = disabled
-ktlint_standard_blank-line-before-declaration = disabled
-ktlint_standard_blank-line-between-when-conditions = disabled
-ktlint_standard_chain-method-continuation = disabled
-ktlint_standard_class-signature = disabled
-ktlint_standard_enum-wrapping = disabled
-ktlint_standard_function-expression-body = disabled
-ktlint_standard_function-signature = disabled
-ktlint_standard_if-else-wrapping = disabled
-ktlint_standard_indent = disabled
-ktlint_standard_multiline-expression-wrapping = disabled
-ktlint_standard_no-empty-first-line-in-class-body = disabled
-ktlint_standard_statement-wrapping = disabled
-ktlint_standard_string-template-indent = disabled
-ktlint_standard_when-entry-bracing = disabled
-
-# rules that enforce style we don't want
-ktlint_standard_backing-property-naming = disabled # it would force making backed properties public.
-ktlint_standard_expression-operand-wrapping = disabled # noisy and doesn't improve readability much
-ktlint_standard_max-line-length = disabled # already enabled in detekt
-ktlint_standard_no-consecutive-comments = disabled # it would limit one line comments to one per line
diff --git a/mobile/android/focus-android/app/build.gradle b/mobile/android/focus-android/app/build.gradle
index 6414660a339f..a9e15d3edcdd 100644
--- a/mobile/android/focus-android/app/build.gradle
+++ b/mobile/android/focus-android/app/build.gradle
@@ -630,7 +630,6 @@ if (project.hasProperty("coverage")) {
 }
 
 mozilla {
-    ktlintSourcePaths = ["src/**/*.kt", "!**/build/**/*.kt"]
     ktfmtSourcePaths = ["src/**/*.kt", "!**/build/**/*.kt"]
     detektSourcePaths = [
         "**/src/**/*.kt",
diff --git a/mobile/android/focus-android/build.gradle b/mobile/android/focus-android/build.gradle
index 79bd4b4b8e04..ae0ea90ff0f1 100644
--- a/mobile/android/focus-android/build.gradle
+++ b/mobile/android/focus-android/build.gradle
@@ -24,7 +24,6 @@ plugins {
 }
 
 mozilla {
-    ktlintSourcePaths = ["app/**/*.kt", "buildSrc/**/*.kt", "!**/build/**/*.kt"]
     ktfmtSourcePaths = ["app/**/*.kt", "buildSrc/**/*.kt", "!**/build/**/*.kt"]
 }
 
diff --git a/mobile/android/focus-android/docs/Recommended-pre-push-hook.md b/mobile/android/focus-android/docs/Recommended-pre-push-hook.md
index f36d376c0ec7..6a986e43b3ac 100644
--- a/mobile/android/focus-android/docs/Recommended-pre-push-hook.md
+++ b/mobile/android/focus-android/docs/Recommended-pre-push-hook.md
@@ -10,7 +10,7 @@ forever to dig through the logs):
 
 ./gradlew -q \
         checkstyle \
-        ktlint \
+        ktfmtCheck \
         pmd \
         detektCheck \
         app:assembleFocusArmDebug
diff --git a/mobile/android/focus-android/quality/pre-push-recommended.sh b/mobile/android/focus-android/quality/pre-push-recommended.sh
index cbc1f6acd434..1d4bf5de8fc6 100755
--- a/mobile/android/focus-android/quality/pre-push-recommended.sh
+++ b/mobile/android/focus-android/quality/pre-push-recommended.sh
@@ -14,7 +14,7 @@
 # Descriptions for each gradle task below can be found in the
 # output of `./gradlew tasks`.
 ./gradlew -q \
-        ktlint \
+        ktfmtCheck \
         detekt \
         assembleFocusDebugAndroidTest \
         testFocusDebugUnitTest
diff --git a/mobile/android/geckoview/.editorconfig b/mobile/android/geckoview/.editorconfig
deleted file mode 100644
index d4412bb20f7b..000000000000
--- a/mobile/android/geckoview/.editorconfig
+++ /dev/null
@@ -1,31 +0,0 @@
-root = True
-
-[*.{kt,kts}]
-ij_kotlin_allow_trailing_comma_on_call_site=true
-ij_kotlin_allow_trailing_comma=true
-insert_final_newline = true
-
-ktlint_argument_list_wrapping_ignore_when_parameter_count_greater_or_equal_than = 13
-
-# disabled rules we should decide whether to enable or not
-ktlint_standard_annotation = disabled
-ktlint_standard_blank-line-before-declaration = disabled
-ktlint_standard_blank-line-between-when-conditions = disabled
-ktlint_standard_chain-method-continuation = disabled
-ktlint_standard_class-signature = disabled
-ktlint_standard_enum-wrapping = disabled
-ktlint_standard_function-expression-body = disabled
-ktlint_standard_function-signature = disabled
-ktlint_standard_if-else-wrapping = disabled
-ktlint_standard_indent = disabled
-ktlint_standard_multiline-expression-wrapping = disabled
-ktlint_standard_no-empty-first-line-in-class-body = disabled
-ktlint_standard_statement-wrapping = disabled
-ktlint_standard_string-template-indent = disabled
-ktlint_standard_when-entry-bracing = disabled
-
-# rules that enforce style we don't want
-ktlint_standard_backing-property-naming = disabled # it would force making backed properties public.
-ktlint_standard_expression-operand-wrapping = disabled # noisy and doesn't improve readability much
-ktlint_standard_max-line-length = disabled # already enabled in detekt
-ktlint_standard_no-consecutive-comments = disabled # it would limit one line comments to one per line
diff --git a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/ContentDelegateChildTest.kt b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/ContentDelegateChildTest.kt
index 0dcb02bcc742..8aacd02a0951 100644
--- a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/ContentDelegateChildTest.kt
+++ b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/ContentDelegateChildTest.kt
@@ -1,7 +1,6 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
-@file:Suppress("ktlint:standard:no-wildcard-imports")
 
 package org.mozilla.geckoview.test
 
diff --git a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoSessionTestRuleTest.kt b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoSessionTestRuleTest.kt
index 851c7d1914c7..260131395738 100644
--- a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoSessionTestRuleTest.kt
+++ b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoSessionTestRuleTest.kt
@@ -1981,7 +1981,6 @@ class GeckoSessionTestRuleTest : BaseSessionTest(noErrorCollector = true) {
         sessionRule.performTestEndCheck()
     }
 
-    @Suppress("ktlint:standard:annotation")
     @Test fun addExternalDelegateDuringNextWait() {
         mainSession.loadTestPath(HELLO_HTML_PATH)
         sessionRule.waitForPageStop()
diff --git a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoViewTest.kt b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoViewTest.kt
index 920cb65f2ab0..9a3f8ce85443 100644
--- a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoViewTest.kt
+++ b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoViewTest.kt
@@ -1,4 +1,3 @@
-@file:Suppress("ktlint:standard:no-wildcard-imports")
 
 package org.mozilla.geckoview.test
 
diff --git a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/PermissionDelegateTest.kt b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/PermissionDelegateTest.kt
index 130ffa18759f..86d741a95b9e 100644
--- a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/PermissionDelegateTest.kt
+++ b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/PermissionDelegateTest.kt
@@ -1,7 +1,6 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
-@file:Suppress("ktlint:standard:no-wildcard-imports")
 
 package org.mozilla.geckoview.test
 
diff --git a/mobile/android/gradle/plugins/apilint/apilint/build.gradle.kts b/mobile/android/gradle/plugins/apilint/apilint/build.gradle.kts
index 71d93147bfb0..2e214d9c45a3 100644
--- a/mobile/android/gradle/plugins/apilint/apilint/build.gradle.kts
+++ b/mobile/android/gradle/plugins/apilint/apilint/build.gradle.kts
@@ -8,7 +8,6 @@ plugins {
 }
 
 val mozconfig = gradle.extra["mozconfig"] as Map<*, *>
-val topsrcdir = mozconfig["topsrcdir"] as String
 val topobjdir = mozconfig["topobjdir"] as String
 
 layout.buildDirectory.set(file("$topobjdir/gradle/build/mobile/android/gradle/plugins/apilint/apilint"))
@@ -16,8 +15,9 @@ layout.buildDirectory.set(file("$topobjdir/gradle/build/mobile/android/gradle/pl
 spotless {
     lineEndings = com.diffplug.spotless.LineEnding.UNIX
     kotlin {
-        ktlint(libs.versions.ktlint.get())
-            .setEditorConfigPath("$topsrcdir/mobile/android/geckoview/.editorconfig")
+        ktfmt(libs.versions.ktfmt.get()).kotlinlangStyle().configure {
+            it.setMaxWidth(120)
+        }
     }
 }
 
diff --git a/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectExtension.kt b/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectExtension.kt
index 60c6635ec1e9..1c9ac464d43e 100644
--- a/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectExtension.kt
+++ b/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectExtension.kt
@@ -10,7 +10,6 @@ import org.gradle.api.provider.Property
 
 interface ProjectExtension {
     val androidComponentsProject: Property<Boolean>
-    val ktlintSourcePaths: ListProperty<String>
     val ktfmtSourcePaths: ListProperty<String>
     val detektSourcePaths: ListProperty<String>
     val detektConfig: Property<String>
diff --git a/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectPlugin.kt b/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectPlugin.kt
index 379b51e4af38..b407f6a85874 100644
--- a/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectPlugin.kt
+++ b/mobile/android/gradle/plugins/conventions/src/main/java/org/mozilla/conventions/ProjectPlugin.kt
@@ -9,10 +9,8 @@ import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.api.artifacts.Configuration
 import org.gradle.api.artifacts.DependencySubstitution
-import org.gradle.api.artifacts.ExternalModuleDependency
 import org.gradle.api.artifacts.VersionCatalogsExtension
 import org.gradle.api.artifacts.component.ModuleComponentIdentifier
-import org.gradle.api.attributes.Bundling
 import org.gradle.api.artifacts.component.ModuleComponentSelector
 import org.gradle.api.logging.Logger
 import org.gradle.api.logging.StandardOutputListener
@@ -33,7 +31,7 @@ class ProjectPlugin : Plugin<Project> {
     override fun apply(project: Project) {
         val mozilla = project.extensions.create("mozilla", ProjectExtension::class.java)
         mozilla.androidComponentsProject.convention(false)
-        mozilla.ktlintSourcePaths.convention(emptyList())
+        mozilla.ktfmtSourcePaths.convention(emptyList())
         mozilla.detektSourcePaths.convention(emptyList())
         mozilla.detektAutoCorrect.convention(true)
         mozilla.detektReports.convention(emptyMap())
@@ -59,7 +57,6 @@ class ProjectPlugin : Plugin<Project> {
         configureAppServicesSubstitution(project, extraProperties, substs)
         configureGleanSubstitution(project, extraProperties)
         configureGleanVersionResolution(project)
-        configureKtlint(project, mozilla)
         configureKtfmt(project, mozilla)
         configureDetekt(project, mozilla)
         configureAndroidComponentsLint(project, mozilla, topsrcdir)
@@ -323,75 +320,6 @@ class ProjectPlugin : Plugin<Project> {
         private val GLEAN_GROUPS = setOf("org.mozilla.telemetry")
     }
 
-    private fun configureKtlint(project: Project, mozilla: ProjectExtension) {
-        val sourcePaths = mozilla.ktlintSourcePaths
-
-        val ktlintConfig = project.configurations.register("ktlint")
-
-        val ktlintDep = project.provider {
-            val versionCatalogs = project.extensions.getByType(VersionCatalogsExtension::class.java)
-            val libs = versionCatalogs.named("libs")
-            val dep = project.dependencies.create(libs.findLibrary("ktlint").get().get())
-            if (dep is ExternalModuleDependency) {
-                dep.attributes {
-                    attribute(Bundling.BUNDLING_ATTRIBUTE, project.objects.named(Bundling::class.java, Bundling.EXTERNAL))
-                }
-            }
-            dep
-        }
-        ktlintConfig.configure { dependencies.addLater(ktlintDep) }
-        val ktlintClasspath = project.files(ktlintConfig)
-
-        // Resolve the include/exclude globs (with leading "!" meaning exclude)
-        // into a FileTree rooted at projectDir, so Gradle can use the actual
-        // Kotlin source set to compute UP-TO-DATE / build cache keys.
-        fun ktlintSourceTree() = project.fileTree(project.projectDir).matching {
-            sourcePaths.get().forEach { pattern ->
-                if (pattern.startsWith("!")) {
-                    exclude(pattern.removePrefix("!"))
-                } else {
-                    include(pattern)
-                }
-            }
-        }
-
-        project.tasks.register("ktlint", JavaExec::class.java) {
-            group = "verification"
-            description = "Check Kotlin code style."
-            classpath = ktlintClasspath
-            mainClass.set("com.pinterest.ktlint.Main")
-            onlyIf { sourcePaths.get().isNotEmpty() }
-            sourcePaths.get().forEach { args(it) }
-            args("--reporter=json,output=build/reports/ktlint/ktlint.json")
-            args("--reporter=plain")
-            inputs.files(ktlintSourceTree())
-                .withPropertyName("ktlintSources")
-                .withPathSensitivity(org.gradle.api.tasks.PathSensitivity.RELATIVE)
-                .skipWhenEmpty()
-            outputs.file(project.file("build/reports/ktlint/ktlint.json"))
-                .withPropertyName("ktlintReport")
-            outputs.cacheIf { true }
-        }
-
-        project.tasks.register("ktlintFormat", JavaExec::class.java) {
-            group = "formatting"
-            description = "Fix Kotlin code style deviations."
-            classpath = ktlintClasspath
-            mainClass.set("com.pinterest.ktlint.Main")
-            onlyIf { sourcePaths.get().isNotEmpty() }
-            args("-F")
-            sourcePaths.get().forEach { args(it) }
-            args("--reporter=json,output=build/reports/ktlint/ktlintFormat.json")
-            args("--reporter=plain")
-            jvmArgs("--add-opens", "java.base/java.lang=ALL-UNNAMED")
-            inputs.files(ktlintSourceTree())
-                .withPropertyName("ktlintFormatSources")
-                .withPathSensitivity(org.gradle.api.tasks.PathSensitivity.RELATIVE)
-                .skipWhenEmpty()
-            outputs.file(project.file("build/reports/ktlint/ktlintFormat.json"))
-                .withPropertyName("ktlintFormatReport")
-        }
-    }
 
     private fun configureDetekt(project: Project, mozilla: ProjectExtension) {
         val sourcePaths = mozilla.detektSourcePaths
diff --git a/taskcluster/config.yml b/taskcluster/config.yml
index 799b6b65fc12..52a23ceb4e43 100644
--- a/taskcluster/config.yml
+++ b/taskcluster/config.yml
@@ -239,7 +239,6 @@ treeherder:
         'buildconfig': 'Make sure the content of .buildconfig.yml matches what gradle knows about its projects'
         'compare-locales': 'Validate strings.xml with compare-locales'
         'detekt': 'detekt linter'
-        'ktlint': 'ktlint linter'
         'lint': 'gradle lint linter'
 
         'focus': 'Focus general tasks no matter the variant'
diff --git a/taskcluster/kinds/source-test/kind.yml b/taskcluster/kinds/source-test/kind.yml
index 6d85abeddd5b..9bfb0e43722f 100644
--- a/taskcluster/kinds/source-test/kind.yml
+++ b/taskcluster/kinds/source-test/kind.yml
@@ -30,7 +30,6 @@ tasks-from:
     - doc.yml
     - file-metadata.yml
     - jsshell.yml
-    - ktlint.yml
     - mozlint.yml
     - mozlint-android.yml
     - node.yml
diff --git a/taskcluster/kinds/source-test/ktlint.yml b/taskcluster/kinds/source-test/ktlint.yml
index 6dc934f58404..e69de29bb2d1 100644
--- a/taskcluster/kinds/source-test/ktlint.yml
+++ b/taskcluster/kinds/source-test/ktlint.yml
@@ -1,76 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
----
-task-defaults:
-    description: 'Run ktlint over all modules'
-    run:
-        clone-with: hg
-        using: gradlew
-        gradlew: ['ktlint']
-    attributes:
-        code-review: true
-    always-target: true
-    fetches:
-        toolchain:
-            - android-sdk-linux
-            - linux64-embedded-uniffi-bindgen
-            - linux64-nimbus-fml
-            - android-gradle-dependencies
-            - linux64-jdk-repack
-    platform: 'lint/opt'
-    treeherder:
-        kind: test
-        tier: 1
-    worker-type: b-linux
-    worker:
-        docker-image: {in-tree: lint}
-        max-run-time: 1200
-    when:
-        files-changed:
-            - "mobile/android/android-components/**"
-
-android-components:
-    run:
-        clone-with: hg
-        pre-gradlew:
-            - ["cd", "mobile/android/android-components"]
-    treeherder:
-        symbol: ktlint(AC)
-    worker:
-        artifacts:
-            - name: public/reports
-              path: /builds/worker/checkouts/gecko/mobile/android/android-components/build/reports
-              type: directory
-
-focus:
-    when:
-        files-changed:
-            - "mobile/android/focus-android/**"
-    run:
-        clone-with: hg
-        pre-gradlew:
-            - ["cd", "mobile/android/focus-android"]
-    treeherder:
-        symbol: ktlint(focus)
-    worker:
-        artifacts:
-            - name: public/reports
-              path: /builds/worker/checkouts/gecko/mobile/android/focus-android/build/reports
-              type: directory
-
-fenix:
-    when:
-        files-changed:
-            - "mobile/android/fenix/**"
-    run:
-        clone-with: hg
-        pre-gradlew:
-            - ["cd", "mobile/android/fenix"]
-    treeherder:
-        symbol: ktlint(fenix)
-    worker:
-        artifacts:
-            - name: public/reports
-              path: /builds/worker/checkouts/gecko/mobile/android/fenix/build/reports
-              type: directory
diff --git a/taskcluster/test/params/mc-android-nightly.yml b/taskcluster/test/params/mc-android-nightly.yml
index bb4fbdf77f63..210ee461e428 100644
--- a/taskcluster/test/params/mc-android-nightly.yml
+++ b/taskcluster/test/params/mc-android-nightly.yml
@@ -660,9 +660,6 @@ existing_tasks:
   source-test-jsshell-bench-sunspider-sm: I8ekQvy3SEqT7SwE4IlAaA
   source-test-jsshell-bench-web-tooling-sm: CHckq_RDQGmTzWvzBLryVA
   source-test-jsshell-bench-web-tooling-v8: bOgj9JU0S4iRNcn1bywXQg
-  source-test-ktlint-android-components: LXpySOcCQ8yLVRj9H0FoWA
-  source-test-ktlint-fenix: UjawibIsRFyRFW3CoJcXrw
-  source-test-ktlint-focus: G1Ez50KYQpKrJD7lNradbg
   source-test-mozlint-android-android-components: Bvk_7U5ZTd6JP_xnsGcvPg
   source-test-mozlint-android-fenix: OOt3WrqfS1So2sSKteCQ3g
   source-test-mozlint-android-focus: XUjvrKsPSM6hRmlBq-zWFw
diff --git a/taskcluster/test/params/mc-desktop-nightly.yml b/taskcluster/test/params/mc-desktop-nightly.yml
index 86d79a4d90bd..dfad81535d7f 100644
--- a/taskcluster/test/params/mc-desktop-nightly.yml
+++ b/taskcluster/test/params/mc-desktop-nightly.yml
@@ -764,9 +764,6 @@ existing_tasks:
   source-test-jsshell-bench-sunspider-sm: HxAlqr5PQtOtzLukfCHO4Q
   source-test-jsshell-bench-web-tooling-sm: G0I2H8XbTaeskioopdvm1w
   source-test-jsshell-bench-web-tooling-v8: fKcLQRSsT9eQTcDoOhdHSQ
-  source-test-ktlint-android-components: LPGpNy6mS1yguxA8Zruikg
-  source-test-ktlint-fenix: fwiMAbkITh6RIsB61BwZzA
-  source-test-ktlint-focus: eIeqyyRQSlmJgL8uzyh9XA
   source-test-mozlint-android-android-components: NliWkhZuQqasIx-BavjXtA
   source-test-mozlint-android-fenix: GROiXRwWRj-HLlwOKEKcSw
   source-test-mozlint-android-focus: AY8otzFuR0Gqe-6N02tA4g
diff --git a/taskcluster/test/params/mc-nightly-all.yml b/taskcluster/test/params/mc-nightly-all.yml
index 246c9a9070e0..7439637f305d 100644
--- a/taskcluster/test/params/mc-nightly-all.yml
+++ b/taskcluster/test/params/mc-nightly-all.yml
@@ -804,9 +804,6 @@ existing_tasks:
   source-test-jsshell-bench-web-tooling-linux1804-64-shippable/opt-v8: LUaomoakT1iM5rslcYHcRg
   source-test-jsshell-bench-web-tooling-linux2404-64-shippable/opt-sm: di5ltgFeTref76bwOskWMA
   source-test-jsshell-bench-web-tooling-linux2404-64-shippable/opt-v8: cQsISoG4Rnq9yG86_I22aQ
-  source-test-ktlint-android-components: Z9q3kDAYSFanUWYJwnqHlA
-  source-test-ktlint-fenix: KpX_eCBBSiOdNVxTWkdwWA
-  source-test-ktlint-focus: Wv6YB1spSrOnAQ5RU1lFkg
   source-test-mozlint-android-android-components: Duw5qBfoTzyZHzZe383JJA
   source-test-mozlint-android-expired-strings: b8NI4WRbQ9GYh1Zr1u2RkQ
   source-test-mozlint-android-fenix: RMYd0gc1Q0OgoKDniWGHGA
diff --git a/tools/lint/android/lints.py b/tools/lint/android/lints.py
index f90d6770f835..b71780543b1e 100644
--- a/tools/lint/android/lints.py
+++ b/tools/lint/android/lints.py
@@ -197,12 +197,10 @@ def report_gradlew(
     topobjdir = lintargs["topobjdir"]
 
     if fix:
-        ktlint_task = f":{project_name}:ktlintFormat"
         ktfmt_task = f":{project_name}:ktfmtFormat"
     else:
-        ktlint_task = f":{project_name}:ktlint"
         ktfmt_task = f":{project_name}:ktfmtCheck"
-    tasks = [ktlint_task, ktfmt_task, f":{project_name}:detekt"] + list(lint_tasks)
+    tasks = [ktfmt_task, f":{project_name}:detekt"] + list(lint_tasks)
 
     extra_args = lintargs.get("extra_args") or []
     if disable_android_components_tasks:
@@ -263,36 +261,6 @@ def report_gradlew(
         print(f"Could not read detekt report: '{detekt_report}'")
         pass
 
-    ktlint_file = "ktlint.json"
-    if fix:
-        ktlint_file = "ktlintFormat.json"
-
-    ktlint_report = os.path.join(reports, "ktlint", ktlint_file)
-    if not os.path.exists(ktlint_report):
-        ktlint_report = os.path.join(
-            topsrcdir, subdir, "app", "build", "reports", "ktlint", ktlint_file
-        )
-    try:
-        issues = json.load(open(ktlint_report))
-
-        for issue in issues:
-            name = issue["file"]
-            if is_excluded_file(topsrcdir, excludes, name):
-                continue
-            for error in issue["errors"]:
-                err = {
-                    "rule": error["rule"],
-                    "path": name,
-                    "lineno": error["line"],
-                    "column": error["column"],
-                    "message": error["message"],
-                    "level": "error",
-                }
-                results.append(result.from_config(config, **err))
-    except FileNotFoundError:
-        print(f"Could not read ktlint report: `{ktlint_report}`")
-        pass
-
     if not fix:
         results.extend(
             parse_ktfmt_results(