I did. What happened when you tried 'I searched "firefox bypass hsts"' ?

https://kagi.com/search?q=firefox%20bypass%20hsts

top result (at least on kagi for me at the moment) -> https://connect.mozilla.org/t5/ideas/allow-firefox-to-bypass...

5th comment still close to the top -> https://connect.mozilla.org/t5/ideas/allow-firefox-to-bypass...

(untested by me)