All Platforms

• Updated Firefox to 128.10.0esr
• Bug 421: Rebase Mullvad Browser release onto 128.10.0esr [mullvad-browser]
• Bug 43659: Set new tabs to default to Tor Browser Home (about:tor) on desktop [tor-browser]
• Bug 43672: Incorrect initial letterbox size when the interface font size is 13px. [tor-browser]
• Bug 43691: Backport security fixes from Firefox 138 [tor-browser]

Build System

All Platforms

• Bug 41435: Skip update-responses update entries for versions without incremental or full update mar [tor-browser-build]