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· Windows Tech Team, Networking Team
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2,267 Posts
Discussion Starter · #1 ·
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
 

· Team Manager, Microsoft Support
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33,780 Posts
Two updates in three days. Mozilla needs to follow the old carpenter's rule. Measure twice, cut once. :embarased
 
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