

I had some websites which didn’t work in some way. Can’t remember, which websites it were, just some big company websites where random buttons would just do nothing or similar. But I think it were only 2 or 3.
Other than that it’s fine. Sometimes it seems like tab management is a bit weird, I once had the browser open with about 100 new tabs besides the other ones I had saved. Just had to close them and done. On my Work-Laptop I have a folder pinned in one space and the popup for it’s contents is shifted down ~200px permanently for some reason. It’s all manageable.
I’d say it’s 50/50… actually 33/33/33.
First, in 2026 I think you need to fuck up pretty bad or use very special stuff in order for your website to only work on Chrome.
But of course Mozilla should behave just like every other browser (well there is basically only chromium right now) and all browsers in general should display websites in the same way. Back in the day you did choose which browser to support when you developed your website, but today you are basically just using browser standards.
Then… there is Google. They are blowing up and poisoning the web standards so much, for their own good and just to bring technology forward. They surely could be more careful and considerate while doing this, so that Mozilla would have a chance to participate.