The desktop web browser experience of twitch.tv and supporting sites, officially support the latest two versions of Google Chrome, the latest two versions of Mozilla Firefox, the most recent version of Microsoft Edge, and the most recent version of Apple Safari.
so I checked and it was the latest version, the problem was firefox's enhanced security option, it works after I disabled it. https://lemmy.ml/comment/2886486
for over a year i couldnt log into my twitch account cause it kept pissing and moaning about my browser not being supported, despite being on a supported version and browser.
persisted through reformats, through LiveCD tryouts, different physical computers, browser resets/reinstalls, and with all addons uninstalled and/or disabled.
Only recently started working again for some reason.
I'd wager twitch is just shit at shit.
thank god I wasnt a streamer wasnt financially dependent on it.