Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why did Adblock suddenly stop working in firefox and firefox won't let me reinstall or re-download it?

  • 1 reply
  • 1 has this problem
  • 6 views
  • Last reply by philipp

more options

Yesterday, May 3, 2019, adblock just suddenly stopped working. No warning, no pop-up message, just in the middle of watching a YouTube video and I was interrupted by an ad and that how I noticed. It was working fine up until then (wasn't the first video I'd watched that day, for example). Firefox wouldn't let me re-enable it for no given reason, wouldn't let me reinstall it (said it was somehow "corrupt"), and won't let me re-download it (gives me some B.S. about having to "check my connection").

What's going on and how do I fix it?

Yesterday, May 3, 2019, adblock just suddenly stopped working. No warning, no pop-up message, just in the middle of watching a YouTube video and I was interrupted by an ad and that how I noticed. It was working fine up until then (wasn't the first video I'd watched that day, for example). Firefox wouldn't let me re-enable it for no given reason, wouldn't let me reinstall it (said it was somehow "corrupt"), and won't let me re-download it (gives me some B.S. about having to "check my connection"). What's going on and how do I fix it?

All Replies (1)

more options

hi phow, this is/was caused by an unforseen technical problem unfortunately (an expired certificate used in the process of verifying addon signatures).

a fix for this is already being rolled out - for details, please see: https://blog.mozilla.org/addons/2019/05/04/update-regarding-add-ons-in-firefox/