As was mentioned, "current" browsers work fine, which means Firefox 86 (Or Waterfox current are fine). It is only an issue with things running older code. Waterfox classic is based on Firefox 56, but with all security updates. Old code base, modern security. Chrome pre-80 is of course old, but not based on anything Mozilla. I only use Chrome when needed so my version was really old since I keep the updates turned off.