Mozilla has announced the final release of Firefox 141, set to officially debut on July 22nd, 2025. This version boasts several enhancements aimed at improving user experience, particularly for those on Linux systems. Notably, Firefox 141 uses less memory and no longer requires a forced restart after updates are applied through a package manager.
Among the new features is an AI integration that suggests tabs and provides names for tab groups. This feature is enabled by default, and users can disable it in the General settings under the Tabs section.
The New Tab page has also received a makeover; the previous wheel icon has been replaced with a "Customize" button featuring a fade-in and fade-out effect. This allows users to modify the New Tab page with wallpapers and manage the number of visible rows of shortcuts.
For Valencian users, the release adds a built-in dictionary for the Firefox spellchecker. Additionally, Windows users benefit from the integration of system-provided font icons for the caption button on Windows 11, along with WebGPU support.
Developers have not been overlooked either. Firefox 141 reinstates support for CHIPS (Cookies Having Independent Partitioned State), introduces the closedby attribute and its corresponding closedBy property, and adds functionality for clearing the bfcache (backwards-forwards cache) in response to the Clear-Site-Data: "cache" header.
Furthermore, support for the webkitdirectory HTML attribute is now included, enabling developers to interact with directory uploads more seamlessly, especially on Firefox for Android. Add-on developers can also take advantage of the new i18n.getPreferredSystemLanguages method, enhancing localization support.
The full release will be officially unveiled tomorrow, but users can download the source tarball and binaries for various system architectures from Mozilla’s FTP server.