Wait, Twitter/X blocks FF? How does that work? Is that only in some countries? I'm in Canada and I still use X on a daily basis in the latest Firefox on Windows and I have not noticed a thing.
I am simplifying in saying that they outright block FF, but the site is broken with Enhanced Tracking Protection enabled [0], and has been for a while. They even mention FF in a dedicated error message, which I have to admit just grinds my gears :)
That's odd. I use X on FF with not only Enhanced Tracking Protection, but also a whole bunch of other privacy extensions (uBlock Origin, Ghosterly, Disconnect.me, DuckDuckGo Privacy Essentials, EFF Privacy Badger) without adding any exception for x.com, and it still works for me.
I am; but for what it's worth, if I open a new private window, I can still browse any public profile on X without logging in, and with Enhanced Tracking Protection enabled.