My experience is that anything that tries to tamper with the UA will send CF into a frenzy.
My regular firefox instance is pretty much okay. Unfortunately there is a bunch of super popular crapware shit like Teams and Slack that refuses to properly work on Firefox, unless you tweak the UA. The last time I had to do this was about half a year ago, but Slack refused to let me "huddle", unless I changed my UA. Same with Teams, it straight up said I need to install chrome if I want video chat.
Any time I forgot to change back my UA, CF would not let me in anywhere. I got the captcha, clicked on it, it said "all good", reloaded the page, and I got redirected back to the captcha. Endless loop.
My regular firefox instance is pretty much okay. Unfortunately there is a bunch of super popular crapware shit like Teams and Slack that refuses to properly work on Firefox, unless you tweak the UA. The last time I had to do this was about half a year ago, but Slack refused to let me "huddle", unless I changed my UA. Same with Teams, it straight up said I need to install chrome if I want video chat.
Any time I forgot to change back my UA, CF would not let me in anywhere. I got the captcha, clicked on it, it said "all good", reloaded the page, and I got redirected back to the captcha. Endless loop.