All Platforms

Updated uBlock Origin to 1.60.0
Bug 349: Tidy up mullvad Fluent files [mullvad-browser]
Bug 30543: compat: make spoofed orientation reflect spoofed screen dimensions [1607032 + 1918202] [tor-browser]
Bug 42054: ESR128: investigate - thorin's list [tor-browser]
Bug 43164: Prevent search-bar from being auto-hidden when not used for awhile [tor-browser]
Bug 43169: compat: align userAgent in navigator + HTTP Header [tor-browser]
Bug 43173: Backport security fixes from Firefox 131 [tor-browser]
Bug 43178: Audit fingerprinting overrides (MozBug 1834274) [tor-browser]

Build System

Bug 43157: Move tb-dev to base-browser [tor-browser]
Bug 41256: tools/signing/upload-update_responses-to-staticiforme should regenerate update-responses when it already exists [tor-browser-build]
Bug 41259: Skip versions which don't set incremental_from when generating incrementals [tor-browser-build]