If you have resist fingerprint on, or use Librewolf, then you need to disable resist fingerprint, clear twitch cache and cookies then restart firefox/librewolf. Go back to twitch, log in (remember me for 30 days), and you should pass twitch’s integrity check on login and be through.
Disable ad-blocking/tracking extensions - uBlock Origin, Decentraleyes, TTV Pro LOL etc. (sometimes I need to do this for twitch integrity check to pass. This should only happen once during the authentication request).
Clear cookies and site data (via lock symbol on the left-side of the URL bar)
For me (on Librewolf and Floorp), it was just enabling WebGL, opening Twitch, logging in, and then disabling WebGL. RFP didn’t have any effect, at least back then.
If you have resist fingerprint on, or use Librewolf, then you need to disable resist fingerprint, clear twitch cache and cookies then restart firefox/librewolf. Go back to twitch, log in (remember me for 30 days), and you should pass twitch’s integrity check on login and be through.
This is what I do with my setup on Librewolf:
oh, yes I have resist finger printing on.
For me (on Librewolf and Floorp), it was just enabling WebGL, opening Twitch, logging in, and then disabling WebGL. RFP didn’t have any effect, at least back then.