Did you just open Firefox only to find all of your extensions disabled and/or otherwise not working? You’re not alone, and it’s nothing you did.
Reports are pouring in of a glitch that has spontaneously disabled effectively all Firefox extensions. Each extension is now being listed as a “legacy” extension, alongside a warning that it “could not be verified for use in Firefox and has been disabled.” A ticket submitted to Mozilla’s Bugzilla bug tracker first hit at around 5:40 PM Pacific, and suggests the sudden failure is due to a code signing certificate built into the browser that expired just after 5 PM (or midnight on May 4th in UTC time). Because the glitch stems from an underlying certificate, re-installing extensions won’t work if you try, you’ll likely just be met with a different error message. Getting extensions back for everyone is going to require Mozilla to issue a patch.
Tweets from the official Firefox browser and Mozilla Add-ons accounts show that the issue is being worked on behind the scenes, but as yet there’s no estimated time for when everything will be back working normally.
It sounds as though the problem should be cleared up sooner rather than later though we’ll update this article if we hear anything more.
