Folks mistakenly associate "breaking" with "not being completely compatible with an illegal streaming website with improper TLS/cyphers." That's just an example but you know what I mean.
Those are the types of websites that have issues with firefox, because mozilla maintains it's own root trust store held to various standards/compliances, and many..less savory web addresses use not HTTPS content on their HTTPS pages.
This is a feature/value added bonus, but because it "breaks" sites for people....back to chrome.
Most are due to the firefox tracking protection.
Others (with everything disabled) were for an airline company, some french governements website, and recently an SVG editor that just call to use chrome and doesn't works on firefox.
