Problems

12592 distinct problems.

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  1. Hidden Yahoo ad panel leaves blank strip on screen 7 reports · latest 22 January 2026
  2. Old Tab Mix Plus features missing in new version 7 reports · latest 19 June 2024
  3. Native helper install is hard and fails 7 reports · latest 1 August 2024
  4. Add-on freezes tabs and slows Firefox to a halt 7 reports · latest 11 July 2025
  5. Blocking works only intermittently 7 reports · latest 4 September 2025
  6. Cashback not activating at checkout 7 reports · latest 22 January 2025
  7. Blocked sites still load in Firefox 7 reports · latest 10 January 2025
  8. Browser and phone app stop syncing trees 7 reports · latest 11 May 2026
  9. Saved logins vanish after browser updates 7 reports · latest 23 February 2024
  10. Bypass stops unblocking sites after a while 7 reports · latest 18 May 2026
  11. Emoji set is years out of date 7 reports · latest 29 August 2025
  12. VPN stops working in Russia and other countries 7 reports · latest 11 July 2026
  13. Blocker stops working after YouTube updates 7 reports · latest 27 February 2026
  14. Downloads save thumbnails, not full-size images 7 reports · latest 17 January 2026
  15. Toolbar icon missing or greyed out in Firefox 7 reports · latest 26 September 2025
  16. Accidental close or stash deletes tabs with no undo 7 reports · latest 23 June 2025
  17. Extension pins CPU and drains battery 7 reports · latest 9 November 2024
  18. Add-on opens an outside page instead of downloading 7 reports · latest 22 January 2026
  19. Settings missing or not saved after update 7 reports · latest 29 March 2024
  20. Privacy Possum breaks logins on many sites 7 reports · latest 6 February 2026
  21. Add-on broke after Firefox updates 7 reports · latest 30 September 2026
  22. Add-on installs but produces no visible download action 7 reports · latest 16 June 2025
  23. Proxy conflict error blocks site login 7 reports · latest 3 March 2024
  24. Add-on invisible after installation 7 reports · latest 30 November 2024
  25. Translator add-on breaks after each Firefox update 7 reports · latest 19 November 2023