Screenshot of that About Firefox panel? Where did you download Firefox from? A consumer download page such as one of these? https://www.mozilla.org/en-US/firefox/fx/#desktop or https://www.mozilla.org/en-US/firefox/all/ Any chance your "toured" the server and "cherry picked" a Firefox installer to download from the server? Like one of these. http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ or https://archive.mozilla.org/pub/firefox/

i went on bing with microsoft edge and i clicked on the first site that came up wich should be that first link u put up there , and here is the image