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  • Cheers. I get the same in Private Browsing so assume it shouldn't be an extension. It's a work laptop with a few anti-virus things installed so guess that is the most likely culprit, although strange that it doesn't do the same with Chrome..

  • Oooh... likely based on protocol.

    Chrome will be using HTTP/3 with LFGSS which the AV may not be able to make sense of. Firefox will still be using HTTP/2 which AV will know about.

    Can confirm those protocols btw, https://www.lfgss.com/cdn-cgi/trace shows the protocol used.

  • Interesting. SHowing the opposite though:

    Firefox:

    visit_scheme=https
    uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/110.0
    colo=LHR
    sliver=none
    http=http/3
    

    Chrome:

    visit_scheme=https
    uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36
    colo=LHR
    sliver=none
    http=http/2
    
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