A maintenance release of Firefox 146.0.1 is now available, addressing 3 vulnerabilities related to access to already freed memory areas and buffer overruns. These vulnerabilities could potentially allow attackers to execute malicious code when users open specially crafted web pages. Along with these security fixes, several non-security issues have also been resolved:
- Improved contrast of sidebar text for better visibility with vertical tabs.
- Fixed three crash-causing issues (1, 2, 3).
- Fixed a problem affecting font display on popular sites like Instagram, Facebook, and YouTube.
- Resolved crashes during multimedia playback and GMP process completion.
- Corrected profile shortcuts deletion bug after changing copied profile settings.
- Message about successful tab restoration from backup will now be displayed on the new tab page (source).
Moreover, Mozilla has responded to criticism regarding the speculated shift of Firefox to an AI browser. Mozilla Corporation CEO, Anthony Enzor-DeMeo, confirmed that Firefox will remain user-controlled with the option to disable AI. This feature is expected to be introduced in the 1st quarter of 2026.
Jake Archibald, in charge of web developer relations at Mozilla, stated that AI functionality will be opt-in and can be