More topics are showing up by the minute.Sorry, the Add-ons team is working on a fix for this. It looks like a certificate used to sign many popular extensions expired. The verification process checks that certificate, and anything that doesn't pass is blocked. I don't know how soon re-signed versions of those extensions will become available, or whether another workaround will be discovered. We are all hoping to learn more soon.
A friend that uses Linux and Firefox, just reported this issue to me, but I don't seem to have the problem (and I just did an update). I'm running Firefox Nightly, with uBlock Origin and Privacy Badger.Ok, found this. It's not just me having the issue. A certificate issue is causing the problem. What a mess.
What is the date where you live right now?So far just my win10 laptop has been hit with the bug. It turned off adblock, no script and one other I can't remember. Addons like no script, adblock are still working on my desktop FF. I read somewhere that it might be based on date, the certs expire on the 4th apparently.
It is really strange what it's affecting. On a couple of old systems I had disabled updating (both Firefox and Extensions) and they're both on FF 54.0.1 which does not have "Studies" to do their temporary patch.5/3/19 for another hour. No idea why its borked on my laptop but desktop still works. Desktop version of FF might be older slightly is only thing I can think of.
Edit: Looks like others are reporting that it seems to hit newer versions of Firefox but not older ones. Then others say they got hit too while running versions 56 up to 66. A bunch of nonsense overall.
Support forum link: http://forums.mozillazine.org/viewforum.php?f=38