FIXED: Fedora - Firefox SSL Errors

Problem Package (fedora): firefox.x86_64 86.0-2.fc33

I was getting:

Unsupported hash algorithm used by TLS peer.
Error code: SSL_ERROR_UNSUPPORTED_HASH_ALGORITHM

and

Cannot communicate securely with peer: no common encryption algorithm(s).
Error code: SSL_ERROR_NO_CYPHER_OVERLAP

...on some major sites. Nothing on the internet seems to fix it.

In the end I just downloaded the firefox bzip from Mozilla ( https://www.mozilla.org/en-GB/firefox/download/thanks/ ) and extracted it into /usr/lib64

EG:
wget https://ftp.mozilla.org/pub/firefox/releases/86.0/linux-x86_64/en-GB/firefox-86.0.tar.bz2 -O - | tar -jxv -C /usr/lib64

Now everything works.

[Update: An update from Fedora also fixed it. Namely 86.0-7.fc33.]