I swear this question comes up everyday in Lemmy 😅.
Firefox, I just use Firefox because, it works, it has enough privacy measures, and everyone is looking at the codebase, something that cannot be said about most (if not all) forks.
I have been encountering it more lately, but that's because of the types of sites I was using.
The ones that may not work tend to be; banking (usually okay though), work-related (ranging from applications to gig work to job specific), and then if you happen to run into something that requires chromium as a way to function, such as some specific extensions or most functional web music creation tools, like MIDI support.
B-b-b-buuuuut I only use Firefox and all my stock and banking sites work fine on FF, those job sites that needed chromium can get by with Edge, and if you're using web browsers for MIDI tools, really, what are you doing?
I use Firefox, and have Brave installed incase I encounter a site that breaks. I havent had to use Brave yet because I never encountered any sites that break ....
broken websites on desktop are rare and not nearly enough to drive a browser change, but they usually fall into two categories:
websites that "break" on purpose for no good reason when they detect it's not chromium. Either avoid the site or change the user agent.
websites that degrade some functionalities because they rely on newer features or on how things appear on chromium. They're usually CSS breakages and do not affect browsing that much.
Support for manifest v2 greatly outweighs these potential issues imo.
My car insurance does not work on Firefox. Bungie website does not work half the time. Maybe some others I can't think of. It really sucks. I just have chrome installed for when something breaks really sucks.
I haven't really had any problems with any sites yet. Except for Google Meet. For some reason it's totally laggy and sluggish on Firefox but works perfectly on Chrome.
Currently using Firefox since half a year for everyday stuff and work.
Please stop recommending vanilla Firefox. Although you could argue that it is less privacy invasive than Chrome, Edge or at leat fucking Opera, it still invades your privacy WITH DEFAULT SETTINGS.
For a solid out-of-the-box Browser you can choose:
LibreWolf (Firefox fork that’s just plain good)
Mullvad (based on Firefox and created in collaboration with Tor Browser devs - if paired with VPN (e.g. Mullvad) anonymity can be archived)
I'm sorry but I won't bother switching to a ultra-minor browser for having to toggle something in the settings once every 2 years after 500 articles pop up about it.