Split View just got better

Version 150.0, first offered to Release channel users on April 21, 2026

New:

• Split View just got better: You can now right-click any link and choose Open Link in Split View to open it alongside your current tab. You can also search open tabs when creating a split view and quickly reverse tab positions using the new Reverse Tabs option in the tab context menu.
• Share multiple tabs in a single step: select several tabs, right-click, and choose Share Copy X links. When pasted into other apps, links include both the page title and URL for easy reading.
• You can now use Firefox’s built-in PDF editor to reorder, copy, paste, delete, and export pages in a PDF.
• Try out real-time, private translations in Firefox Desktop with the about:translations page. Start typing the word "translate" into the URL bar for a quick-action shortcut to the page.
• Added support for the GTK emoji picker on Linux, allowing users to insert emoji using the system shortcut (typically Ctrl+.).
• Firefox web apps are now available to Windows users who installed Firefox through the Microsoft Store.
• The new Firefox Profile management system is now available to all users, including users on Windows 10.
• Backing up a profile to a file is now available to all Windows 10 and 11 users, including those who use the new profile management system.
• Firefox now ships with a new .rpm package for Linux users on Red Hat, Fedora, openSUSE, and other RPM-based distributions.
• Firefox now prompts you to enable location access in Windows settings when granting a website permission to use your location, if geolocation hasn't already been allowed. This behavior, previously limited to some Windows 11 versions, now applies to all supported Windows versions.
• The built-in VPN is now available for users in Canada. Note: This feature is not available in enterprise environments.
• Currently available in: Canada, France, Germany, United Kingdom, United States

Fixed:

• Fixed an issue on macOS where, when macOS Lockdown mode is enabled, emoji characters are not displayed in web content.
• Various security fixes.

Changed

• If you prefer creating tab groups from the context menu, you can now turn off drag-and-drop group creation in Settings > Tabs > Drag tabs to create tab groups

Enterprise

• You can find information about policy updates and enterprise-specific bug fixes in the Firefox for Enterprise 150 Release Notes.

Developer
Developer Information

• A new element-specific section has been added to the pseudo-class toggle panel including a toggle for the :open pseudo-class, which is only available for elements that have an open state like <dialog> elements. The existing toggle for the :visited pseudo-class was also moved there, as it only applies to and <area></area> elements. (Learn More)
• The Document.caretPositionFromPoint() method now only returns a position in a shadow DOM if its ShadowRoot is passed in the newly-added shadowRoots option.
• The devtools network monitor now indicates when a connection used a certificate issued by a certificate authority not in Mozilla's Root CA Program.

Web Platform

• Firefox now supports the ariaNotify API for accessibility notifications (e.g. for screen readers) as a more ergonomic and reliable alternative to ARIA live regions.
• Firefox now supports media element pseudo-classes (e.g., :playing, :paused) to allow more precise styling based on media playback state.
• Added support for the highlightsFromPoint() API, which allows web pages to interact with CSS Highlights by returning all Highlights at a given point.
• Firefox now supports light-dark() on images, just like on colors, which is very useful for supporting dark mode on websites.
• The color-mix() function previously accepted only two color values. This limitation has now been removed, allowing the function to accept an arbitrary number of colors.
• Added support for a new auto value on the sizes attribute for lazy-loaded image elements with multiple images defined via srcset. This allows the browser to automatically select the right image based on the layout width of the image element.