

A good chunk of websites are just broken with Firefox and their not even broken in obvious ways. Some times they fail to load, sometimes they render weirdly, sometimes their just unresponsive. I use Firefox as my main browser but I always have something chromium based as my backup for when a website I wanna use just doesn’t work. A lot of the time I don’t even think to use it and assume the site would be broken on chromium as well but nope. Its almost always Firefox:/.
The royal mail tracking website for example brings up an obnoxious full page block on top of the actual content. Only happens on Firefox on android. Chrome worked fine.
Edit: also, just for reference, I’m amazed anyone actually needs examples of this. Its very well known that different browsers have different supported functionalities and unless the webdevs are properly customising styles and scripts for different platforms their gonna deviate. Thusly its not surprising most stuff only works as designed on Chrome since that’s the only Web browser that’s guaranteed to be tested on (it has the lions size of market share, to the point Firefox barely even registers).