I’ve enabled “Delete cookies and site data when Firefox is closed” but while all cookies gets deleted, some random site data does not. Are my settings wrong, is this a bug, and what even is that data?

Additional Info: I use RFP, want to keep browsing history and site settings. Thank you very much.

  • HarriPotero@lemmy.world
    8·
    3 months ago

    Sounds like it’s localStorage. But I’d expect that to be covered by “site data” in that option.

    It’s a bit like cookies, but just for one site. Some think they can avoid cookie consent banners with localStorage.

    Firefox has a page on the topic.

    • tacticalsugar@lemmy.blahaj.zone
      119·
      3 months ago

      8 bytes is enough to store 18,446,744,073,709,551,616 (18 quintillion) different values, more than enough space for a fingerprint ID. The size of the data shouldn’t factor into the potential threat.

      • MangoPenguin@lemmy.blahaj.zoneEnglish
        4·
        3 months ago

        Oh for sure, I just wonder if the size being the same on 2 of them is a result of Firefox storing some default data there on cleanup by accident.

        • tacticalsugar@lemmy.blahaj.zone
          2·
          3 months ago

          Oh, I get it now! In my sleep deprived state I missed that two of them had the same size. That seems like a reasonable guess, I’m just paranoid about cookies :P

        • tacticalsugar@lemmy.blahaj.zone
          7·
          3 months ago

          My point still stands. The size of data says nothing about its contents. If OP is concerned about this from a security or privacy perspective, you shouldn’t be writing them off because it’s only 100 bytes.