Firefox 147.0.3 is out with fixes for broken UI on Windows and more

Another update is now rolling out to Firefox under version 147.0.3. Mozilla is adding more bug fixes to the recently released version 147, including buggy popups and context menus on Linux, broken UI on Windows systems with multiple fonts installed, and more.

Here is the changelog:

• Interoperability improvements for the CSS anchor positioning and Navigation web APIs.
• Fixed a regression where position: sticky elements on some webpages could appear stuck or fail to update while mousewheel-scrolling after certain :hover interactions.
• Fixed an issue on Linux (Wayland) where certain popups and context menus could sometimes open in the wrong place, such as the top-left corner of the window.
• Fixed an issue where the Firefox Developer Tools could fail to reopen after using the Inspector\u2019s node picker and reloading a page containing cross-origin iframes.
• Fixed an issue where the DNS over HTTPS provider settings section could appear as a blank box, preventing users from seeing the current setting or changing it.
• Fixed an issue on Windows systems with a large number of fonts installed where parts of the Firefox UI (tabs, menus, and Settings) could display garbled characters or symbols instead of readable text.

Version 147.0.3 is the third bug-fixing update for Firefox 147, which was released in January. The update introduced WebGPU support for Apple Silicon Macs, improved video playback on PCs with AMD graphics cards, and more. After that, Mozilla released versions 147.0.1 and 147.0.2 with a bunch of fixes for websites like ChatGPT, a bug with empty directories on Linux, and more.

Firefox 147.0.3 is now available for download from Mozilla's FTP, and it will soon arrive for all users via the browser's built-in update mechanisms. You can download the browser from the official website or the Microsoft Store if you are on Windows 10 or 11.

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Posted Thursday 5 February 2026 at 4:55 am AEST (my time).

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