Source
https://www.firefox.com/en-US/firefox/150.0/releasenotes/
This is a translation by Gemini 3 Flash.
Split screen functionality has been further improved. You can now right-click on a link and select 'Open link in split screen' to open it side by side with the current tab. Additionally, when creating a split screen, you can search for open tabs, and through the new 'Reverse tabs' option in the tab context menu, you can quickly switch tab positions.
Try sharing multiple tabs at once. Select multiple tabs, right-click, and choose 'Share → Copy X links'. When you paste into another app, the page titles and URLs are included together for easy reading.
You can now use Firefox's built-in PDF editor to change the order of PDF pages, as well as copy, paste, delete, and export them.
Try using Firefox Desktop's real-time privacy-preserving translation feature via the about:translations page. When you type 'translate' in the address bar, a quick-action shortcut appears that takes you directly to that page.
[This is a translation feature page using a local model. (Currently, performance is not as good compared to cloud-based LLMs.)]
GTK emoji picker support has been added on Linux, and you can insert emoji using the system shortcut (typically Ctrl+.).
Windows users who installed Firefox through the Microsoft Store can now use web apps.
A new Firefox profile management system is now available to all users, including Windows 10 users.
The ability to back up profiles as files is now available to all Windows 10 and 11 users, including those using the new profile management system.
New .rpm packages are now available for Linux users using multiple RPM-based distributions such as Red Hat, Fedora, and openSUSE.
When granting location access to websites, if location access is not enabled in Windows settings, guidance will be displayed to enable it. This behavior, which was previously limited to some Windows 11 versions, is now expanded to all supported Windows versions.
Canadian users can now also use the built-in VPN. Note: This feature is not available in enterprise environments. (Currently available countries: Canada, France, Germany, United Kingdom, United States)
Fixed an issue where emoji characters were not displayed in web content when 'Lockdown Mode' was enabled on macOS.
Multiple security fixes have been applied.
