Yes, it's related to a expired certificate.

Yes, it happened to me too, on Firefox 56.  So I installed Waterfox.  It copied over my Firefox profile and pretty much ran everything the same as Firefox did.  All my add-ons (which are unsupported on the latest Firefox version) were there and working, including their settings.  The only manual thing I had to do was to find my profile and its "session" folder where the Session Manager add-on stores my session backups.  I copied the latest one over to the Waterfox profile in the same subdirectory, restarted Waterfox and then Session Manager was able to load my old session.  Waterfox seems to be running a bit faster than Firefox did as well, which is nice, but that may just mean that it has not had enough time to store all the cruft that Firefox had.

Seems to be fixed now.

JWR:

 

Seems to be fixed now.

 

not for me its not

Jase2985:

 

not for me its not

 

Use "Clear Recent History" to clear the cache.

SirHumphreyAppleby:

 

Jase2985:

 

not for me its not

 

 

Use "Clear Recent History" to clear the cache.

 

nope

but i am running an older version of firefox so maybe thats it.

Jase2985:

 

but i am running an older version of firefox so maybe thats it.

 

Possibly. I had two desktops with the issue, one worked when tried this morning, clearing the cache appeared to resolve the issue with the other.

SirHumphreyAppleby:

 

Jase2985:

 

but i am running an older version of firefox so maybe thats it.

 

 

Possibly. I had two desktops with the issue, one worked when tried this morning, clearing the cache appeared to resolve the issue with the other.

 

its weird, desktop and laptop running same version of FF, desktop works fine, laptop doesnt.

i use the laptop the most

Still not working.

Looks like it's going to be another nice day in Christchurch, so I will spend the day outside. Lots of leaves to pick up. Also need to finish off the drill press table.

Mine just sorted itself out this morning when I loaded it up, didn't have to do anything.

k1w1k1d:

 

Firefox has just disabled most of my add-ons, eg UBlock, Lastpass, etc.

 

According to the experts on Google it looks like it is a bug that Mozilla is working on. Hope they fix it soon.

 

This (Reddit link) fixed it for me.

Mozilla have released a fix.

Tools > Options > Privacy and Security. Scroll down to  "Firefox Data Collection and Use" and select "Allow Firefox to install and run studies".

Restart Firefox and all should be back to normal.👍

k1w1k1d:

 

Mozilla have released a fix.

 

Tools > Options > Privacy and Security. Scroll down to  "Firefox Data Collection and Use" and select "Allow Firefox to install and run studies".

 

Restart Firefox and all should be back to normal.👍

 

Fog:

 

k1w1k1d:

 

Mozilla have released a fix.

 

Tools > Options > Privacy and Security. Scroll down to  "Firefox Data Collection and Use" and select "Allow Firefox to install and run studies".

 

Restart Firefox and all should be back to normal.👍

 

Didn't work for me. Anyone else still having problems.?

 

yep