meonBot · pull · Mar 23, 2026 · Mar 23, 2026 · Mar 23, 2026 · Mar 23, 2026
diff --git a/files/en-us/mozilla/firefox/experimental_features/index.md b/files/en-us/mozilla/firefox/experimental_features/index.md
@@ -457,29 +457,6 @@ See [Firefox bug 1602129](https://bugzil.la/1602129) for our progress on this AP
 - `dom.webgpu.service-workers.enabled`
   - : Set to `true` to enable (enabled in Nightly)
 
-### Reporting API support for CSP Violations
-
-The [Reporting API](/en-US/docs/Web/API/Reporting_API) now has support for reporting [Content Security Policy (CSP)](/en-US/docs/Web/HTTP/Guides/CSP) violations.
-
-{{domxref('Report')}} instances returned by the {{domxref('ReportingObserver')}} interface can now have a `type` value of `"csp-violation"` and a `body` property that contains an instance of the {{domxref('CSPViolationReportBody')}} interface.
-This allows CSP violations to be reported within a web page.
-
-CSP violation reports can also be sent to remote endpoints that are specified by name in the CSP {{CSP("report-to")}} directive — endpoints names and corresponding URLs must first be defined in the {{httpheader('Reporting-Endpoints')}} or {{httpheader('Report-To')}} HTTP response headers.
-The report is a serialization of the {{domxref('Report')}} object described above, with a `body` property that is a serialization of a {{domxref('CSPViolationReportBody')}} instance.
-
-This violation report replaces a similar CSP-specific mechanism for sending violation reports, which uses the CSP {{CSP("report-uri")}} directive to set the URL of the reporting endpoint, and has a [CSP-specific JSON violation report format](/en-US/docs/Web/HTTP/Reference/Headers/Content-Security-Policy/report-uri#violation_report_syntax).
-([Firefox bug 1391243](https://bugzil.la/1391243)).
-
-| Release channel   | Version added | Enabled by default? |
-| ----------------- | ------------- | ------------------- |
-| Nightly           | 130           | No                  |
-| Developer Edition | 130           | No                  |
-| Beta              | 130           | No                  |
-| Release           | 130           | No                  |
-
-- `dom.reporting.enabled`
-  - : Set to `true` to enable.
-
 ### WebRTC and media
 
 The following experimental features include those found in media APIs such as the [WebRTC API](/en-US/docs/Web/API/WebRTC_API), the [Web Audio API](/en-US/docs/Web/API/Web_Audio_API), the [Media Source Extensions API](/en-US/docs/Web/API/Media_Source_Extensions_API), the [Encrypted Media Extensions API](/en-US/docs/Web/API/Encrypted_Media_Extensions_API), and the [Media Capture and Streams API](/en-US/docs/Web/API/Media_Capture_and_Streams_API).

diff --git a/files/en-us/mozilla/firefox/releases/148/index.md b/files/en-us/mozilla/firefox/releases/148/index.md
@@ -1,8 +1,8 @@
 ---
-title: Firefox 148 release notes for developers (Stable)
-short-title: Firefox 148 (Stable)
+title: Firefox 148 release notes for developers
+short-title: Firefox 148
 slug: Mozilla/Firefox/Releases/148
-page-type: firefox-release-notes-active
+page-type: firefox-release-notes
 sidebar: firefox
 ---
 

diff --git a/files/en-us/mozilla/firefox/releases/149/index.md b/files/en-us/mozilla/firefox/releases/149/index.md
@@ -1,42 +1,25 @@
 ---
-title: Firefox 149 release notes for developers (Beta)
-short-title: Firefox 149 (Beta)
+title: Firefox 149 release notes for developers (Stable)
+short-title: Firefox 149 (Stable)
 slug: Mozilla/Firefox/Releases/149
 page-type: firefox-release-notes-active
 sidebar: firefox
 ---
 
 This article provides information about the changes in Firefox 149 that affect developers.
-Firefox 149 is the current [Beta version of Firefox](https://www.firefox.com/en-US/channel/desktop/#beta) and ships on [March 24, 2026](https://whattrainisitnow.com/release/?version=149).
-
-> [!NOTE]
-> The release notes for this Firefox version are still a work in progress.
-
-<!-- Authors: Please uncomment any headings you are writing notes for -->
+Firefox 149 was released on [March 24, 2026](https://whattrainisitnow.com/release/?version=149).
 
 ## Changes for web developers
 
-<!-- ### Developer Tools -->
-
 ### HTML
 
 - The [`popover`](/en-US/docs/Web/HTML/Reference/Global_attributes/popover) global attribute now supports the [`hint`](/en-US/docs/Web/HTML/Reference/Global_attributes/popover#hint) value. Popovers with the `hint` value will not close `auto` popovers when they are displayed, but will close other hint popovers. ([Firefox bug 1867743](https://bugzil.la/1867743)).
 
-<!-- No notable changes. -->
-
-<!-- #### Removals -->
-
 ### MathML
 
 - The CSS [`font-family: math`](/en-US/docs/Web/CSS/Reference/Properties/font-family#math) property is now supported, and applied to {{mathmlelement('math')}} elements by default.
   This ensures that websites can use an appropriate math font and/or MathML without having to know what fonts are present on the underlying OS. ([Firefox bug 2014703](https://bugzil.la/2014703)).
 
-<!-- #### Removals -->
-
-<!-- ### SVG -->
-
-<!-- #### Removals -->
-
 ### CSS
 
 - The {{CSSXRef("shape-outside")}} CSS property now supports the [`xywh()`](/en-US/docs/Web/CSS/Reference/Values/basic-shape/xywh) function as a value. This allows you to define a shape for inline content to wrap around, using distances from the left (`x`) and top (`y`) edges of the containing block and a width (`w`) and height (`h`). ([Firefox bug 1983187](https://bugzil.la/1983187)).
@@ -47,28 +30,21 @@ Firefox 149 is the current [Beta version of Firefox](https://www.firefox.com/en-
   This allows matching against containers based solely on their names.
   ([Firefox bug 2016474](https://bugzil.la/2016474)).
 
-<!-- #### Removals -->
-
-<!-- ### JavaScript -->
-
-<!-- No notable changes. -->
+### JavaScript
 
-<!-- #### Removals -->
-
-<!-- ### HTTP -->
-
-<!-- #### Removals -->
-
-<!-- ### Security -->
-
-<!-- #### Removals -->
+No notable changes.
 
 ### APIs
 
 - The [`options.resizeQuality`](/en-US/docs/Web/API/Window/createImageBitmap#resizequality) parameter is now supported by {{domxref("Window.createImageBitmap()")}} and {{domxref("WorkerGlobalScope.createImageBitmap()")}}.
   In addition, the methods now allow both resize options ([`options.resizeWidth`](/en-US/docs/Web/API/Window/createImageBitmap#resizewidth) or [`options.resizeHeight`](/en-US/docs/Web/API/Window/createImageBitmap#resizeheight)) and image bitmap parameters ([`sx`, `sy`, `sw`, and `sh`](/en-US/docs/Web/API/Window/createImageBitmap#sx)) to be set at the same time — previously setting both returned the unscaled source bitmap.
   ([Firefox bug 2010125](https://bugzil.la/2010125)).
 
+- The [Reporting API](/en-US/docs/Web/API/Reporting_API) is now supported for reporting [Content Security Policy (CSP)](/en-US/docs/Web/HTTP/Guides/CSP) and {{httpheader("Integrity-Policy")}} violations.
+  This allows report objects that are {{domxref("CSPViolationReport")}} objects and {{domxref("IntegrityViolationReport")}} objects to be reported in violating pages using a {{domxref("ReportingObserver")}} (reports can be filtered on the `type` property: `"csp-violation"` or `"integrity-violation"`).
+  A serialized version of the report objects can also be sent to a reporting server specified in the corresponding HTTP header — endpoint names and corresponding URLs must first be defined in the {{httpheader('Reporting-Endpoints')}} or {{httpheader('Report-To')}} HTTP response headers.
+  ([Firefox bug 1976074](https://bugzil.la/1976074), [Firefox bug 2008916](https://bugzil.la/2008916)).
+
 #### DOM
 
 - The [`HTMLSelectElement.showPicker()`](/en-US/docs/Web/API/HTMLInputElement/showPicker#showpicker_for_a_datalist_input) method is now supported for a list of options defined in a {{htmlelement("datalist")}}.
@@ -99,12 +75,6 @@ Firefox 149 is the current [Beta version of Firefox](https://www.firefox.com/en-
   Prior to this change, the media element's volume affected the volume of the captured stream.
   ([Firefox bug 2010427](https://bugzil.la/2010427)).
 
-<!-- #### Removals -->
-
-<!-- ### WebAssembly -->
-
-<!-- #### Removals -->
-
 ### WebDriver conformance (WebDriver BiDi, Marionette)
 
 #### General
@@ -135,13 +105,9 @@ Firefox 149 is the current [Beta version of Firefox](https://www.firefox.com/en-
 - A user gesture is no longer required for {{WebExtAPIRef("action.openPopup")}} and {{WebExtAPIRef("browserAction.openPopup")}} to open a popup. This feature was available behind the `extensions.openPopupWithoutUserGesture.enabled` preference from Firefox 108. This change aligns Firefox's behavior with Chrome and Safari. ([Firefox bug 1799344](https://bugzil.la/1799344))
 - If `windowId` is passed in {{WebExtAPIRef("action.openPopup")}} or {{WebExtAPIRef("browserAction.openPopup")}}, the window must be focused (active) for the popup to open. To open a popup in an unfocused window {{WebExtAPIRef("windows.update","windows.update(windowId, { focused: true })")}} must be called first. This change aligns Firefox behavior with Chrome. ([Firefox bug 2011516](https://bugzil.la/2011516))
 
-<!-- ### Removals -->
-
 - The ability of extensions to dynamically execute code in their `moz-extension:` documents with {{WebExtAPIRef("tabs.executeScript")}}, {{WebExtAPIRef("tabs.insertCSS")}}, {{WebExtAPIRef("tabs.removeCSS")}}, {{WebExtAPIRef("scripting.executeScript")}}, {{WebExtAPIRef("scripting.insertCSS")}}, and {{WebExtAPIRef("scripting.removeCSS")}} is deprecated. ([Firefox bug 2011234](https://bugzil.la/2011234)) The feature is no longer available in Firefox Nightly, and the beta and release versions of Firefox provide a warning in the tab's console. This restriction will apply to all versions of Firefox 152 and later. ([Firefox bug 2015559](https://bugzil.la/2015559)) As an alternative, an extension can run code in its documents dynamically by registering a {{WebExtAPIRef("runtime.onMessage")}} listener in the document's script, then sending a message to trigger execution of the required code.
 - The implicit CSS filter applied to [page action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Page_actions) SVG icons on dark themes is deactivated in Nightly builds ([Firefox bug 2001318](https://bugzil.la/2001318)) and will be deactivated in other Firefox editions from version 152 ([Firefox bug 2016509](https://bugzil.la/2016509)). You can test page action SVG icons with the CSS filter disabled in other Firefox editions by creating a boolean `about:config` preference called `extensions.webextensions.pageActionIconDarkModeFilter.enabled` and setting it to `false`.
 
-<!-- ### Other -->
-
 ## Experimental web features
 
 These features are shipping in Firefox 149 but are disabled by default.

diff --git a/files/en-us/mozilla/firefox/releases/150/index.md b/files/en-us/mozilla/firefox/releases/150/index.md
@@ -1,13 +1,13 @@
 ---
-title: Firefox 150 release notes for developers (Nightly)
-short-title: Firefox 150 (Nightly)
+title: Firefox 150 release notes for developers (Beta)
+short-title: Firefox 150 (Beta)
 slug: Mozilla/Firefox/Releases/150
 page-type: firefox-release-notes-active
 sidebar: firefox
 ---
 
 This article provides information about the changes in Firefox 150 that affect developers.
-Firefox 150 is the current [Nightly version of Firefox](https://www.firefox.com/en-US/channel/desktop/#nightly) and ships on [April 21, 2026](https://whattrainisitnow.com/release/?version=150).
+Firefox 150 is the current [Beta version of Firefox](https://www.firefox.com/en-US/channel/desktop/#beta) and ships on [April 21, 2026](https://whattrainisitnow.com/release/?version=150).
 
 > [!NOTE]
 > The release notes for this Firefox version are still a work in progress.

diff --git a/files/en-us/mozilla/firefox/releases/151/index.md b/files/en-us/mozilla/firefox/releases/151/index.md
@@ -0,0 +1,83 @@
+---
+title: Firefox 151 release notes for developers (Nightly)
+short-title: Firefox 151 (Nightly)
+slug: Mozilla/Firefox/Releases/151
+page-type: firefox-release-notes-active
+sidebar: firefox
+---
+
+This article provides information about the changes in Firefox 151 that affect developers.
+Firefox 151 is the current [Nightly version of Firefox](https://www.firefox.com/en-US/channel/desktop/#nightly) and ships on [May 19, 2026](https://whattrainisitnow.com/release/?version=151).
+
+> [!NOTE]
+> The release notes for this Firefox version are still a work in progress.
+
+<!-- Authors: Please uncomment any headings you are writing notes for -->
+
+## Changes for web developers
+
+<!-- ### Developer Tools -->
+
+<!-- ### HTML -->
+
+<!-- No notable changes. -->
+
+<!-- #### Removals -->
+
+<!-- ### MathML -->
+
+<!-- #### Removals -->
+
+<!-- ### SVG -->
+
+<!-- #### Removals -->
+
+<!-- ### CSS -->
+
+<!-- #### Removals -->
+
+<!-- ### JavaScript -->
+
+<!-- No notable changes. -->
+
+<!-- #### Removals -->
+
+<!-- ### HTTP -->
+
+<!-- #### Removals -->
+
+<!-- ### Security -->
+
+<!-- #### Removals -->
+
+<!-- ### APIs -->
+
+<!-- #### DOM -->
+
+<!-- #### Media, WebRTC, and Web Audio -->
+
+<!-- #### Removals -->
+
+<!-- ### WebAssembly -->
+
+<!-- #### Removals -->
+
+<!-- ### WebDriver conformance (WebDriver BiDi, Marionette) -->
+
+<!-- #### General -->
+
+<!-- #### WebDriver BiDi -->
+
+<!-- #### Marionette -->
+
+## Changes for add-on developers
+
+<!-- ### Removals -->
+
+<!-- ### Other -->
+
+## Experimental web features
+
+These features are shipping in Firefox 151 but are disabled by default.
+To experiment with them, search for the appropriate preference on the `about:config` page and set it to `true`.
+You can find more such features on the [Experimental features](/en-US/docs/Mozilla/Firefox/Experimental_features) page.
diff --git a/files/en-us/mozilla/firefox/releases/32/index.md b/files/en-us/mozilla/firefox/releases/32/index.md
@@ -51,7 +51,7 @@ Highlights:
 - The {{domxref("KeyboardEvent.getModifierState()")}} and {{domxref("MouseEvent.getModifierState()")}} methods have been extended to support the `Accel` virtual modifier ([Firefox bug 1009388](https://bugzil.la/1009388)).
 - The {{domxref("KeyboardEvent.code")}} property have been experimentally implemented: it is disabled on release build ([Firefox bug 865649](https://bugzil.la/865649)).
 - Scoped selectors for {{domxref("Document.querySelector()")}} and {{domxref("Document.querySelectorAll()")}}, for example `querySelector(":scope > li")` have been implemented ([Firefox bug 528456](https://bugzil.la/528456)).
-- The experimental implementation of the {{domxref("Document.timeline")}} interface, related to the [Web Animation API](https://drafts.fxtf.org/web-animations/), has been added ([Firefox bug 998246](https://bugzil.la/998246)). It is controlled by `layout.web-animations.api.enabled` preference, enabled only on Nightly and Aurora for the moment.
+- The experimental implementation of the {{domxref("Document.timeline")}} interface, related to the [Web Animations API](/en-US/docs/Web/API/Web_Animations_API), has been added ([Firefox bug 998246](https://bugzil.la/998246)). It is controlled by `layout.web-animations.api.enabled` preference, enabled only on Nightly and Aurora for the moment.
 - The [Data Store API](https://web.archive.org/web/20210613234447/https://developer.mozilla.org/en-US/docs/Archive/B2G_OS/API/Data_Store_API) has been made available to [Web Workers](/en-US/docs/Web/API/Web_Workers_API/Using_web_workers) ([Firefox bug 949325](https://bugzil.la/949325)). It still is only activated for certified applications.
 - The [ServiceWorker](/en-US/docs/Web/API/Service_Worker_API) `InstallPhaseEvent` and {{domxref("InstallEvent")}} interfaces have been implemented ([Firefox bug 967264](https://bugzil.la/967264)).
 - The MSISDN Verification API, only activated for privileged apps, has been added ([Firefox bug 988469](https://bugzil.la/988469)).

diff --git a/files/en-us/web/api/bufferedchangeevent/addedranges/index.md b/files/en-us/web/api/bufferedchangeevent/addedranges/index.md
@@ -3,10 +3,12 @@ title: "BufferedChangeEvent: addedRanges property"
 short-title: addedRanges
 slug: Web/API/BufferedChangeEvent/addedRanges
 page-type: web-api-instance-property
+status:
+  - experimental
 browser-compat: api.BufferedChangeEvent.addedRanges
 ---
 
-{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}
+{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}{{SeeCompatTable}}
 
 The **`addedRanges`** read-only property of the {{domxref("BufferedChangeEvent")}} interface returns a {{domxref("TimeRanges")}} object representing the time ranges that were added to the associated {{domxref("ManagedSourceBuffer")}}. These are the ranges added between the last `updatestart` and `updateend` events, during the most recent run of the coded frame processing algorithm.
 

diff --git a/files/en-us/web/api/bufferedchangeevent/bufferedchangeevent/index.md b/files/en-us/web/api/bufferedchangeevent/bufferedchangeevent/index.md
@@ -3,10 +3,12 @@ title: "BufferedChangeEvent: BufferedChangeEvent() constructor"
 short-title: BufferedChangeEvent()
 slug: Web/API/BufferedChangeEvent/BufferedChangeEvent
 page-type: web-api-constructor
+status:
+  - experimental
 browser-compat: api.BufferedChangeEvent.BufferedChangeEvent
 ---
 
-{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}
+{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}{{SeeCompatTable}}
 
 The **`BufferedChangeEvent()`** constructor of the {{domxref("BufferedChangeEvent")}} interface creates a new `BufferedChangeEvent` object instance.
 

diff --git a/files/en-us/web/api/bufferedchangeevent/index.md b/files/en-us/web/api/bufferedchangeevent/index.md
@@ -2,27 +2,29 @@
 title: BufferedChangeEvent
 slug: Web/API/BufferedChangeEvent
 page-type: web-api-interface
+status:
+  - experimental
 browser-compat: api.BufferedChangeEvent
 ---
 
-{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}
+{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}{{SeeCompatTable}}
 
 The **`BufferedChangeEvent`** interface of the {{domxref("Media Source Extensions API", "Media Source Extensions API", "", "nocode")}} represents the event object for the {{domxref("ManagedSourceBuffer.bufferedchange_event", "bufferedchange")}} event fired on a {{domxref("ManagedSourceBuffer")}}. This event is fired whenever the buffered ranges of the `ManagedSourceBuffer` change, for example as a result of {{domxref("SourceBuffer.appendBuffer", "appendBuffer()")}}, {{domxref("SourceBuffer.remove", "remove()")}}, or {{domxref("MediaSource.endOfStream", "endOfStream()")}} calls, or when the user agent runs the memory cleanup algorithm.
 
 {{InheritanceDiagram}}
 
 ## Constructor
 
-- {{domxref("BufferedChangeEvent.BufferedChangeEvent", "BufferedChangeEvent()")}}
+- {{domxref("BufferedChangeEvent.BufferedChangeEvent", "BufferedChangeEvent()")}} {{experimental_inline}}
   - : Creates and returns a new `BufferedChangeEvent` object.
 
 ## Instance properties
 
 _Also inherits properties from its parent interface, {{domxref("Event")}}._
 
-- {{domxref("BufferedChangeEvent.addedRanges")}} {{ReadOnlyInline}}
+- {{domxref("BufferedChangeEvent.addedRanges")}} {{ReadOnlyInline}} {{experimental_inline}}
   - : A {{domxref("TimeRanges")}} object representing the time ranges that were added to the {{domxref("ManagedSourceBuffer")}}'s buffer.
-- {{domxref("BufferedChangeEvent.removedRanges")}} {{ReadOnlyInline}}
+- {{domxref("BufferedChangeEvent.removedRanges")}} {{ReadOnlyInline}} {{experimental_inline}}
   - : A {{domxref("TimeRanges")}} object representing the time ranges that were removed from the {{domxref("ManagedSourceBuffer")}}'s buffer.
 
 ## Examples

diff --git a/files/en-us/web/api/bufferedchangeevent/removedranges/index.md b/files/en-us/web/api/bufferedchangeevent/removedranges/index.md
@@ -3,10 +3,12 @@ title: "BufferedChangeEvent: removedRanges property"
 short-title: removedRanges
 slug: Web/API/BufferedChangeEvent/removedRanges
 page-type: web-api-instance-property
+status:
+  - experimental
 browser-compat: api.BufferedChangeEvent.removedRanges
 ---
 
-{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}
+{{APIRef("Media Source Extensions")}}{{AvailableInWorkers("window_and_dedicated")}}{{SeeCompatTable}}
 
 The **`removedRanges`** read-only property of the {{domxref("BufferedChangeEvent")}} interface returns a {{domxref("TimeRanges")}} object representing the time ranges that were removed from the associated {{domxref("ManagedSourceBuffer")}}. These are the ranges removed between the last `updatestart` and `updateend` events, during the most recent run of the coded frame removal or coded frame eviction algorithm, or as a consequence of the user agent running the memory cleanup algorithm.
 

diff --git a/files/en-us/web/api/deprecationreport/index.md b/files/en-us/web/api/deprecationreport/index.md
@@ -2,12 +2,10 @@
 title: DeprecationReport
 slug: Web/API/DeprecationReport
 page-type: web-api-interface
-status:
-  - experimental
 browser-compat: api.ReportingObserver.ReportingObserver.options_parameter.types_property.deprecation
 ---
 
-{{APIRef("Reporting API")}}{{SeeCompatTable}}
+{{APIRef("Reporting API")}}
 
 The `DeprecationReport` dictionary of the [Reporting API](/en-US/docs/Web/API/Reporting_API) represents a deprecation report.