Too often the only sites I find are broken in Firefox are "necessary" things like financial and medical things. I rarely see any issue with hobby and nonsense sites where "laziness" might be excusable.

It's the perverse incentives where companies with a captive audience that can't easily churn will be the ones that ship broken half-arsed sites and not care.

One phenomena I am seeing more that makes me boil with fury is infinite captchas in Firefox. If Firefox increasingly gets excluded "for security" then...