Firefox Just Disabled Ublock Origin

It's now a "legacy" extension. I was depending on that. Can someone recommend an alternative?

 

Firefox disabled all add-ons because a certificate expired
https://www.engadget.com/2019/05/03/firefox-extension-add-on-cert/

 

The same thing just happened to me - all the extensions have been disabled.
I found a fix.

Disclaimer: Use the following workaround at your own risk.
1. Copy and paste about:config in the address bar.
2. Click I accept the risk!

3. Scroll down to and double-click xpinstall.signatures.required. (the value must change to false)

4. Restart Firefox.

Works in Firefox 60.6.1esr.

 

Greetings.

If you're using Tor, please heed the following from the same engadget article:

 

The temporary hotfix Mozilla rolled out is working for me. Had to go into Tools, Options, Privacy & Security, Firefox Data Collection and Use, and enable the option "Allow Firefox to send technical and interaction data to Mozilla" and its suboption "Allow Firefox to install and run studies". Once your add-ons are re-enabled, you can disable the two options again.