Edit:
Changing xpinstall.signatures.required to false in about:config fixed it for me. But be careful when messing in there.
I wonder how the data flow to spammers and trackers changed by that.
Fucking annoying, but [looks like it's been worked on](https://blog.mozilla.org/addons/2019/05/04/update-regarding-add-ons-in-firefox/).
Edit:
Changing xpinstall.signatures.required to false in about:config fixed it for me. But be careful when messing in there.
I wonder how the data flow to spammers and trackers changed by that.
Fucking annoying, but looks like it's been worked on.
Edit: Changing xpinstall.signatures.required to false in about:config fixed it for me. But be careful when messing in there.