[alpenadiver]

Found a bug in the current Firefox Version 66.0.3, It disabled my LastPass, and UBlock addons.


It seems to be a error with the Certificates. You will not be able to download the addon from Firefox. Mozilla is currently working on a fix.



The fix I found to work is, in the address bar type about:debugging then check the Enable Add-On Debugging, a window will open navigate to;
C:/Users/YOUR USERNAME/AppData/Roaming/Mozilla/Firefox/Profiles/YOURPROFILE.Default/Extensions/


Then click one the.xpi file, and it will load the addon.
Remember the AppData folder is hidden, you will need to unhide it. Either from Win10 File Explorer > View tab > Options >View >Show Hidden Files Folders and Drives

 

[Rich-M]

Newer versions of Firefox seem awful "buggy" to me which is why I am using Waterfox these days, that and fact it still takes "Java".

 

[Gary R]

Firefox 66.0.4 was released yesterday to address the problem with add-ons ... https://www.mozilla.org/en-US/firefox/66.0.4/releasenotes/

 

[Rich-M]

Good news thanks Gary.

 

[vanukuru.vinod]

Firefox 66.0.4 was released yesterday to address the problem with add-ons ... https://www.mozilla.org/en-US/firefox/66.0.4/releasenotes/

It seemed to affect my Firefox also, Thanks Gary to highlight it!

 

[TexasBandit]

There is another update from Firefox: 66.0.5. I downloaded it yesterday, and my addons are working just fine.

 

[tristar]

Thanks for the update Bandit..

 

[Corday]

Two updates in three days. Mozilla needs to follow the old carpenter's rule. Measure twice, cut once. :embarased

 

[tristar]

lol ^