Download Firefox Developer Edition (en-US)

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 156.0 --exact

Release notes

Version 156.0beta, first offered to Beta channel users on August 31, 2026 Firefox Beta gets updated 3 times a week and as a consequence, the release notes for the Beta channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports. Warning: Features listed here may or may not make a final release of Firefox. In addition to these release notes, you can follow ongoing development via the Firefox Trains website or our @FirefoxBeta Bluesky account. New - macOS users can now configure Firefox to launch automatically at startup via Settings. - Improved memory and CPU usage when Firefox displays large JPEG images scaled down to fit a page. - Localized Wikipedia and occasional sponsored suggestions in the address bar now available in France, Germany, and Italy (can be disabled in Firefox Suggest settings). - Firefox for Android media notifications now include previous/next buttons and timeline seeking controls. - Firefox for Android sharing now uses native Android share sheet on Android 14+, with options like Send tab to device and Scan QR code. Fixed - Windows ARM64 devices: WebRTC video calls may now use hardware H264 decoding. - Fixed dragging an inline image to a new position in a rich-text editor replacing it with a long line of text instead of moving it. - All devices: WebRTC video calls may now use hardware AV1 decoding. - Fixed high-sample-rate FLAC audio in MP4 failing to play on sites such as…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/156.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 151.0 --exact

Release notes

Version 151.0beta, first offered to Beta channel users on April 22, 2026 Firefox Beta gets updated 3 times a week and as a consequence, the release notes for the Beta channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports. Warning: Features listed here may or may not make a final release of Firefox. In addition to these release notes, you can follow ongoing development via the Firefox Trains website or our @FirefoxBeta Bluesky account. New - On macOS, URLs copied from iOS devices using Apple’s Universal Clipboard now paste correctly in Firefox. - HTML <select> dropdowns now display as an OS-native menu on macOS, aligning their appearance and behavior with the rest of the system. - The about:translations page is now accessible through the More Tools section of the Application Menu. - Address Autofill is enabled for users in the Netherlands. - With Firefox for Android you can now to swipe vertically over the toolbar to quickly see your list of tabs. - Private Browsing Mode now has a new privacy feature that allows users to instantly clear all data from their current private session without closing the entire browser. - Standard Enhanced Tracking Protection mode is getting increased protections against fingerprinting that limit the amount of information revealed about your computer and frustrating attempts to track you across websites. - Local profile backups are now available on macOS and…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/151.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 149.0 --exact

Release notes

Version 149.0beta, first offered to Beta channel users on February 25, 2026 Firefox Beta gets updated 3 times a week and as a consequence, the release notes for the Beta channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports. Warning: Features listed here may or may not make a final release of Firefox. In addition to these release notes, you can follow ongoing development via the Firefox Trains website or our @FirefoxBeta Bluesky account. New - The WebRender layer compositor is now enabled on Windows, reducing power usage during full-screen video playback and improving WebGL/WebGPU performance. - Many PDF files will now load significantly faster thanks to hardware acceleration. - Address Autofill is enabled for users in Australia, India, Italy, Poland, and Austria - Firefox now automatically blocks notifications and permanently revokes permissions for any website flagged as malicious by SafeBrowsing. This prevents unsafe sites from sending background notifications to users, commonly used for ads, spam or phishing. - You can now add a Share button to your toolbar from Customize Toolbar. It lets you easily share the addresss of your current tab using your Windows or macOS Operating system’s sharing services. - View two pages side-by-side in a single window with the new Split View feature that makes it easier to compare information, research topics, or work across two pages at once. To…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/149.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 148.0 --exact

Release notes

New - Firefox now has improved support for screen readers accessing mathematical formulas embedded in PDFs. - Firefox for Android introduces a refreshed toolbar with a modern design and improved customization support. - Firefox for Android now includes a "Copy link text" context menu item to copy the text associated with a link. - Added an AI Controls section to Settings for managing AI-enhanced features. Coming in 148.0 Beta 11 Fixed - On Windows, dragging a downloaded image to Adobe Illustrator now properly drops an image instead of the image's URL. Developer Web Platform - The initial empty document is now Web-compatible: if the first navigation of a browsing context goes to about:blank, it completes synchronously and is no longer replaced by a second parser-generated document. - Firefox now supports the Trusted Types API, which is primarily aimed at preventing cross-site scripting attacks. - Firefox now supports the CSS shape() function, which allows defining responsive free-form shapes in properties that take shapes like clip-path. It has some advantages over the path() function, as it utilizes standard CSS syntax, supports various CSS units, and enables the use of mathematical functions. - Firefox now supports the Sanitizer API, which provides new methods for HTML manipulation. The element.setHTML() method enables developers to insert HTML content similarly to element.innerHTML, but without the security vulnerabilities such as cross-site scripting (XSS). A…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/148.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 147.0 --exact

Release notes

New - WebGPU support is now enabled for all macOS versions on devices with Apple Silicon processors. - Zero copy video of hardware decoded video with AMD GPUs if supported, improving video playback performance on those systems. - Firefox now supports the Freedesktop.org XDG Base Directory Specification. - Firefox now supports the Safe Browsing V5 protocol and is migrating from Safe Browsing V4 to the local list mode of Safe Browsing V5 protocol. - We've added a new feature to automatically open a Picture-in-Picture player window for a playing video in a tab if that tab is ever backgrounded. This feature was mainly contributed by a volunteer Daniele Ferla, and has recently graduated from Firefox Labs! You can turn this feature on by visiting about:settings and checking "Keep playing videos in Picture-in-Picture when switching tabs". - Firefox 147 includes support for Compression Dictionaries, IETF RFC 9842. This can significantly reduce the number of bytes transferred to load a page in several ways. That can lead to faster pageloads, especially for users with restricted bandwidth. Several major sites are currently using this, and likely many more will in the next year. Fixed - A draggable button is now draggable if the drag is started from the button itself. - Fixed an issue that prevented Windows users from selecting a tab when the cursor was at the top of the screen and Firefox was maximized on some kinds of monitors. - For Linux GNOME Mutter users, window and rendering…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/147.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 146.0 --exact

Release notes

New - When a website uses a file upload field (<input type=file>) without specifying what types of files it accepts, Firefox for Android will now offer additional options to make file uploads easier. Users will see choices to pick a file, take a photo, or record audio directly from their device. - For users of the English-language versions of Firefox in France, Germany, and Italy, the address bar will now show English-language suggestions for holidays and other important dates. - Firefox Labs is now available to all users, regardless of whether or not they choose to participate in studies or submit telemetry. That means we have more features in the hands of more people. - macOS users now have a dedicated GPU process by default. This includes WebGPU, WebGL, and Firefox's own WebRender. With this feature enabled, fatal errors in graphics code will no longer crash the browser, and will instead transparently restart the GPU process. - Firefox now natively supports fractional scaled displays on Linux(Wayland), making rendering more effective. Changed - Firefox removed support for Direct2D on Windows. If you still require Direct2D support, please use ESR 140.0 or higher. Developer - Unused custom properties are now hidden by default in the Rule view of the Inspector. This not only reduces clutter, but in some cases also speeds up the rendering of the inspector panel. - Firefox now supports sending a post-quantum (PQ) key share during the DTLS 1.3 handshake for WebRTC connections…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/146.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 145.0 --exact

Release notes

New - Copy Link to Highlight allows users to share arbitrary sections of page with others by copying a link through the context menu with a given selection. - Add, edit, and delete comments to make your own notes in PDFs (summaries, questions, tasks, etc.). The comment sidebar helps you scan all your comments and quickly jump to them, which is handy for long or heavily marked-up PDFs. - Need a reminder of what tabs are in a group? Hover over the tab group name to get a preview of the tabs inside without opening it. - Starting with Firefox 145, Nightly and Early-beta builds can now find previously visited pages using Semantic History Search, which lets users recall sites with natural-language and concept-based queries, all processed locally for privacy. (Learn more) Changed - Starting with Firefox 145, 32-bit Linux is no longer supported. We encourage users to install a 64-bit version of Firefox. - Horizontal tabs are now slightly more round, following the look of vertical tabs. Buttons and text inputs, including the Address bar, have been updated as well for consistency. - When a Firefox user has no extensions installed, and clicks the Extensions button on the toolbar, they will now see a message explaining how extensions can elevate their browsing experience with links to the Firefox add-ons store. Developer Web Platform - Support has been added for the Atomics.waitAsync proposal, which is a non-blocking, asynchronous version of Atomics.wait. This allow synchronization of…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/145.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 144.0 --exact

Release notes

New - You can now close a Picture-in-Picture window without pausing the video. Press Shift + Click on the close button or use Shift + Esc to exit while keeping playback uninterrupted. - Logins in the Firefox Password Manager are now encrypted using a more modern encryption scheme, switching from 3DES-CBC to AES-256-CBC. This change only affects the local encryption of logins on the disk; logins synced through Firefox Sync are end-to-end encrypted independently and have already been using a strong encryption scheme (AES-256-GCM) previously. - On Firefox for Android, a new translations banner now informs you of the translation status of the current webpage. Changed - On Windows, when opening a link from another application, Firefox will only use a window on the current virtual desktop or open a new window if needed. - On Firefox for Android, the "Allow screenshots in private browsing" setting has been removed. Developer - The events tooltip in the Inspector now shows a badge besides custom events, making it easier to differentiate them from built-in events. Web Platform - Firefox now supports the Element.moveBefore API. - Firefox now supports math-shift compact. - Firefox now supports the WebGPU GPUDevice.importExternalTexture API on Windows. - Firefox now supports PerformanceEventTiming.interactionId, allowing developers to group related input events. This enables support for the Interaction to Next Paint (INP) responsiveness metric. - Firefox now supports the command and…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/144.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 143.0 --exact

Release notes

New - When a site asks for camera access, it can now be previewed in the permission dialog. This is especially helpful when switching between multiple cameras. - Tapping a persistent notification when Firefox for Android is closed or restarted now properly opens Firefox with the relevant webpage. - Firefox has expanded its Fingerprinting Protection by reporting constant values for several more attributes of user's computers. More Details - When downloading a file in private browsing mode, the user will be prompted to chose whether they want to keep or delete files that are downloaded while in private browsing. This preference can also be set at about:settings. - With Firefox for Android, you can now see your download progress in real time, with controls to pause, resume, retry, or cancel — all from the Downloads screen. - Firefox for Android users can now configure DNS over HTTPS in the settings UI. - Added support for running websites as web apps for Firefox on Windows. These are sites that you can pin and run as simplified windows directly from the taskbar, without loosing access to Add-ons. This feature is not available at this time for Firefox installs from the Microsoft Store. Developer - Unchecking the Group Similar Messages setting now prevents successive similar messages from being grouped so that all messages are displayed in the output. Web Platform - Firefox now supports xHE-AAC audio playback on Windows 11 22H2+, macOS, and Android 9+. - <input type=color> now…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/143.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 142.0 --exact

Release notes

New - On Windows, clicking a persistent notification when Firefox is closed or restarted, will now properly open Firefox with the relevant webpage, instead of just opening the main page of the website. - ETP-Strict mode now supports a flexible exception list to fix broken site features caused by tracker blocking. Exceptions are split into baseline (core functionality) and convenience (extra features), letting users choose improved site compatibility without compromising key privacy protections. - You can now remove extensions from the sidebar by right-clicking the extension icon and selecting Remove from Sidebar. Fixed - Improved the scroll speed in the bookmarks dialog to not go beyond the component area. - Improved Drag-and-drop support for blob images. Changed - Improved search results from browsing history via the address bar, reducing the likelihood of duplicate results being shown. Developer - Firefox now supports the Prioritized Task Scheduling API, enabling developers to assign and manage task priorities. - The Selection.getComposedRanges() API is now available, allowing developers to accurately get selected text ranges across shadow DOM boundaries. - Added support for the URLPattern API, enabling developers to match and parse URLs using a standardized pattern syntax. - Firefox now supports the wllama API for extensions, enabling developers to integrate local language model (LLM) capabilities directly into their add-ons.

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/142.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 141.0 --exact

Release notes

New - On Linux Firefox uses less memory and no longer requires a forced restart after an update has been applied by a package manager. - Firefox builds in Valencian now come with a built-in Catalan (Valencian variant) dictionary for the Firefox spellchecker. Changed - Firefox on Windows 11 now uses system provided font icons for the caption buttons, more in line with Windows 11. Developer - Firefox will now also clear the back-forward-cache when receiving the Clear-Site-Data: "cache" response header. Web Platform - Implemented the closedby attribute and it's related closedBy property on dialogs indicating the types of user actions that can be used to close the associated <dialog> element. - Support for Cookies Having Independent Partitioned State (CHIPS) is now re-enabled, allowing developers to opt a cookie into storage partitioning per top-level site. - The HTMLElement.showPopover() and HTMLElement.togglePopover() methods now take an options.source argument referencing the popover invoker, and togglePopover() also takes a force resp. options.force argument to force the popover open or closed.

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/141.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 140.0 --exact

Release notes

New - You can now unload tabs by right-clicking on a tab (or multiple selected tabs) and selecting "Unload Tab". This can be helpful in reducing Firefox's memory and CPU usage. - Firefox for Android now allows includes a "Select All" in Bookmarks. - Vertical Tabs: You can now keep more — or fewer — pinned tabs in view. Just drag the divider to resize your pinned tabs section. - Firefox now supports adding custom search engines. To do so, right-click a search field of a supported website and select Add Search Engine, or go to Settings > Search > Add (below the search shortcuts table) to manually enter a search URL. - The Firefox Extensions button can now be removed from the toolbar, giving you more control over how you customize your browser. When the button is hidden, you can access the extensions panel again at any time from the Firefox menu by clicking the Extensions menu item. - Firefox builds in Arabic now come with a built-in Arabic dictionary for the Firefox spellchecker. - You can now lock your private browsing tabs behind your fingerprint or device credentials for added privacy. Enable the setting in Firefox for Android to keep your private tabs secure even when you leave the app. - Full-Page Translations now prioritize translating only the content near your current view, improving speed and responsiveness. Content outside your view is skipped unless you scroll to it, reducing unnecessary resource usage. Changed - The Pocket toolbar icon, as well as the Pocket…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/140.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 139.0 --exact

Release notes

New - Full-Page Translations are now available within Firefox extension pages. Fixed - PNG images with transparency now keep their transparency when pasted into Firefox. - The upload performance of HTTP/3 been significantly improved, particularly on resumed connections (QUIC 0-RTT) and high bandwidth and high delay connections. - Fix for MFSA 2025-36 included in Firefox 139.0b10 and newer. Developer Web Platform - window.getSelection().toString() now correctly returns the text serialization when text is selected in a text control, improving cross-browser interoperability on some sites. - Closed <details> elements are now searchable and can be automatically expanded if found via find-in-page. - Timer throttling for Workers is now supported. - The Temporal proposal is now enabled by default in Firefox. Temporal is a better version of Date, for more details, please see https://spidermonkey.dev/blog/2025/04/11/shipping-temporal.html and https://tc39.es/proposal-temporal/docs/. - Added support for the WebAuthn largeBlob extension. - Added support for requestClose() to HTMLDialogElement. - Service Workers are now available in Private Browsing Mode. This enhancement builds on our efforts to support IndexedDB and the DOM Cache API in Private Browsing through encrypted storage. With this change, more websites, especially those that rely on background tasks, will be able to benefit from Service workers. - Firefox now supports the hidden=until-found attribute, allowing content to be…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/139.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 138.0 --exact

Release notes

New - Firefox for Android now supports TLS client authentication certificates. When a TLS server requests authentication from the browser, Firefox can now make use of the client certificates that have been added to your Android device. - Desktop mode in Firefox for Android is now enabled by default on tablets, but can still be disabled from the Site Settings. - You can now copy links for background tabs using the tabstrip context menu on MacOS and Linux. - Firefox on Windows 11 now uses acrylic-style menus for popup windows, which better match the operating system’s aesthetic. Users who wish to customize this behavior can do so via the widget.windows.mica.popups preference. - Firefox for Android now allows you to share a downloaded file or its original URL from the Downloads screen. Changed - Rededicated previous color settings to Contrast Control settings. (Learn more) - Improved the address and credit card autofill experience to better handle forms that update dynamically as users input information. Autofill now correctly fills newly revealed fields—such as those shown after selecting a country. Developer - Added support for the error.captureStackTrace extension to avoid incompatibility with other browsers. (Learn more) - We have implemented support for Error.isError, which allows for brand checking whether or not an object is an instance of Error. (Learn more) - Firefox 138 beta users will have the change where <h1> always has the same UA style, even in <article>…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/138.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 137.0 --exact

Release notes

New - Firefox now identifies all links in PDFs and turns them into hyperlinks. - Support HEVC playback on Linux. - You can now use the Firefox address bar as a calculator. Simply type in arithmetic expression and view the result in the address bar drop-down. Clicking on this result will copy it to your clipboard. Changed - Due to recent changes in MacOS Sequoia, the shortcut to complete search strings to .com addresses has been changed on MacOS from Ctrl+Enter to Cmd+Enter. The preference to disable this feature, browser.urlbar.ctrlCanonizesURLs, was not renamed, and it's valid across all the supported platforms. Developer - In the Inspector Fonts panel, we now display fonts metadata, like the the font version, designer, vendor, license… - The Network panel now allows overriding network request responses with local files. Web Platform - Support for the SVG discard element is now available. - Support for the SVG 2 path API is now available. - Support for the hyphenate-limit-chars property is now available. This property enables authors to have greater control over the use of automatic hyphenation.

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/137.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 136.0 --exact

Release notes

New - On macOS, some background tasks will be moved to lower power cores resulting in less energy use. - Hardware-accelerated playback of HEVC video content is now supported on macOS. - Hardware video decoding is now enabled for AMD GPUs on Linux. - Firefox will upgrade page loads to HTTPS and gracefully fall back to HTTP if that does not succeed. This behavior is known as HTTPS-First. - Having any issues with a website on Firefox for Android, yet the site seems to be working as expected on another browser? You can now let us know via the Web Compatibility Reporting Tool. To access it: - Open the Menu via the three-dot button while on a browser tab - Tap on “Report broken site” Provide the form with as much information as possible, and you’ll directly help us detect, target, and fix the most impacted sites to make your browsing experience on Firefox smoother. - Smartblock Embeds allows users to selectively unblock certain social media embeds that are blocked in ETP Strict and Private Browsing modes. Currently, a limited number of embeds are supported with support for more embed types coming in the near future. Fixed - Firefox will now prefer PNG when copying images out of Firefox, allowing the preservation of transparency. Changed - Cookie Banner Handling by default in Private Browsing is now disabled. This was previously enabled only in Nightly and Beta. The feature can be enabled via the cookiebanners.service.mode and cookiebanners.service.mode.privateBrowsing prefs in…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/136.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 135.0 --exact

Release notes

New - Users on macOS and Linux are now given the option to close only the current tab if the Quit keyboard shortcut is used while multiple tabs are open in the window. - Firefox now includes new safeguards to prevent sites from overwhelming the Back history by spamming numerous consecutive visits over a short time. - To help Mozilla find and fix crashes, you can opt into automatically sharing Firefox for Android crash reports by checking the new Data Collection setting "Automatically submit crash reports". Changed - The "Copy Without Site Tracking" menu item was renamed to "Copy Clean Link" to help clarify expectations around what the feature does. "Copy Clean Link" is a list based approach to remove known tracking parameters from links. This option can also now be used on plain text links. - Linux binaries are now provided in XZ format, replacing the previous BZ2 format, offering faster unpacking and smaller file sizes. Blog Post - Some web pages either function as redirects or abuse the history API in order to generate an excessive amount of history entries. Both cases can result in making navigating your browser history via the back/forward buttons annoyingly difficult. This intervention causes these history entries which the user has not interacted with to be skipped by the back and forward buttons. Developer Web Platform - The attribute values which indicate the coordinates of PointerEvent may now be fractional values rather than only integers. This allows web apps to…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/135.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 134.0 --exact

Release notes

New - Firefox now supports touchpad hold gestures on Linux. This means that kinetic (momentum) scrolling can now be interrupted by placing two fingers on the touchpad. - HEVC hardware support is implemented for Windows users. Fixed - Fixed an issue that started with macOS Sonoma where the emoji picker would open and immediately close when opened with the Cmd+Ctrl+Space shortcut. Thanks to research by Carlos Duarte do Nascimento (Chester) and :bintoro, and a patch by Carlos Duarte do Nascimento (Chester), we have been able to fix this universally for this shortcut and similar shortcuts going forward. - Fixed an issue that started with macOS Sonoma where the emoji picker would also insert the character "e" in the selected text field/box when opening the emoji picker using the Fn+e shortcut. We have also fixed this for similar shortcuts using the Fn key. Changed - Firefox follows now the model HTML specification for transient user activation more closely. This change makes popup blocking less strict in cases where previous versions of Firefox were overly aggressive, reducing erroneous blocking prompts. Developer

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/134.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 133.0 --exact

Release notes

New - You can now show tabs from other devices in the Tab overview menu. - Firefox now supports touchpad hold gestures on Linux. This means that kinetic (momentum) scrolling can now be interrupted by placing two fingers on the touchpad. - GPU-accelerated Canvas2D is enabled by default on Windows. - Desktop mode browsing is now enabled by default for large devices on Firefox for Android. This can be controlled via a preference under Settings in "Site settings" previously named "Site permissions". - When copying text to the clipboard in Private Browsing mode, Firefox for Android now handles it as sensitive content. The toast notification for the clipboard is masked on Android 13 and higher. - Firefox now has a new anti-tracking feature enabled in Enhanced Tracking Protection "strict" mode: Bounce Tracking Protection. This protection detects bounce trackers based on redirect behavior and periodically purges their cookies and site data to prevent tracking. Fixed - If we have the server time, we adjust the "expire" attribute value by adding the delta between the server and the local times. If the current time is set in the future, we consider valid cookies that are not expired for the server. - Fixed an issue that started with macOS Sonoma where the emoji picker would open and immediately close when opened with the Cmd+Ctrl+Space shortcut. Thanks to research by Carlos Duarte do Nascimento (Chester) and :bintoro, and a patch by Carlos Duarte do Nascimento (Chester), we have been…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/133.0

Pin this version: winget install --id Mozilla.Firefox.DeveloperEdition --version 132.0 --exact

Release notes

New - Firefox now blocks third-party cookie access with Enhanced Tracking Protection's Strict mode. - WebRender hardware accelerated rendering is now enabled for most SVG Filter Primitives, improving performance of certain graphics-heavy content. Accelerated filters are feBlend, feColorMatrix, feComponentTransfer, feComposite, feDropShadow, feFlood, feGaussianBlur, feMerge and feOffset. - GPU-accelerated Canvas2D is enabled by default on Windows. Fixed - Fix for MFSA 2024-51 is included in Firefox Desktop and DevEdition 132.0b5 builds and newer. Changed - As a follow-up to our work to upgrade mixed content starting Firefox 127, we will now also block HTTP-favicons if they can not be received over HTTPS instead. - Firefox for Android now uses resizes-visual as the default value of the interactive-widget property of the viewport <meta> element. This means that when the software keyboard is shown, Firefox resizes the page's visual viewport but not its layout viewport, avoiding an expensive reflow and resulting in a more usable layout on many pages. - The "Copy Without Site Tracking" option is now greyed out when no known tracking parameters were found. Please report tracking parameters that aren't removed by filing a bug in Bugzilla. - The Firefox for Android address bar's default position has moved from the bottom of the screen to the top for new users. You can use the "Customize > Toolbar" setting to move the toolbar back to the bottom. Developer - Support for HTTP/2 Push…

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Manifest: manifests/m/Mozilla/Firefox/DeveloperEdition/132.0

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