[Can't access some websites after renewing my ESET license on Firefox, all works on Edge.]

Firefox update solved it. Why it happened just right after ESET updated finished I have no clue.

[Can't access some websites after renewing my ESET license on Firefox, all works on Edge.]

Renewed my license, updated everything on ESET, and now I can't access website on Firefox.
gmail, facebook, some local sites are all not working on Firefox, they are however working just fine on Edge.
I get these errors:

Error code: SEC_ERROR_BAD_SIGNATURE

The site at https://mail.google.com/mail/u/0/#inbox has experienced a network protocol violation that cannot be repaired.

 

Any hint on how to solve this would be much appreciated.

 

Nauris