I made the same observation. I also have a sidebar, and after enabling resistFingerprinting, the screen size is a unique identifier for me.
Edit: Here [1] is a relevant link from the mozilla support forum. It links to an old bug report in Tor, and they claim that this actually reveals less information about you. Imo it still makes tracking easier, but I didn't really dig into it.
Edit: Here [1] is a relevant link from the mozilla support forum. It links to an old bug report in Tor, and they claim that this actually reveals less information about you. Imo it still makes tracking easier, but I didn't really dig into it.
[1] https://support.mozilla.org/en-US/questions/1200851#answer-1...