Release
Thu, Sep 3, 2026
1 min read
Mullvad Browser 15.0.21
Original release notes
- All Platforms
- Updated Firefox to 140.15.0esr
- Updated NoScript to 13.6.32.1984
- Updated uBlock Origin to 1.74.0
- Bug 572: Websites can initiate a WebSocket connection to a lan/localhost port [mullvad-browser]
- Bug 45259: Backport Security Fixes from Firefox 155 [tor-browser]
