WEBCAT version history - 7 versions
WEBCAT by Freedom of the Press Foundation
WEBCAT version history - 7 versions
Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 2.6.2
Released Mar 1, 2026 - 89.24 KBWorks with firefox 140.0 and later, android 142.0 and laterFixes:
- Error in validating the update file
- Restore WEBCAT url bar error icon on error pageSource code released under MIT License
Older versions
Version 2.6.1
Released Feb 26, 2026 - 89.16 KBWorks with firefox 140.0 and later, android 142.0 and laterFix:
- Display error code in error page more reliablySource code released under MIT License
Version 2.6.0
Released Feb 26, 2026 - 88.87 KBWorks with firefox 140.0 and later, android 142.0 and laterFixes:
- Race condition for WASM validation
- Retry update logic for failed update attemptSource code released under MIT License
Version 2.5.0
Released Feb 26, 2026 - 88.82 KBWorks with firefox 140.0 and later, android 142.0 and laterFixes:
- Tentative TBB startup fixSource code released under MIT License
Version 2.4.0
Released Feb 25, 2026 - 88.83 KBWorks with firefox 140.0 and later, android 142.0 and laterFixes:
- Better WebAssembly hooking
- Display neutral WEBCAT icon when non-enrolled domains use enrolled resources
- Better in-memory database management
- Minor fixesSource code released under MIT License
Version 2.3.0
Released Feb 23, 2026 - 88.82 KBWorks with firefox 140.0 and later, android 142.0 and laterFeature updates:
- Basic compatibility with Tor Browser
- Added support for inline scripts via CSP sha256-xxx hashes
- Stability fixesSource code released under MIT License
Version 2.2.0
Released Feb 2, 2026 - 84.37 KBWorks with firefox 140.0 and later, android 142.0 and laterSource code released under MIT License