Hello. Firefox is updating automatically. However, you can check for updates from "Help" menu then select "About Firefox" as in this article: https://support.mozilla.org/en-US/kb/update-firefox-latest-release

If you want to uninstall and download it again, you can go to https://www.mozilla.org/en-GB/firefox/new/ and Download the Firefox installer to install the latest version. This will work on Windows 7/8/10. (You can click on "Download options and other languages" to access for downloading options)

For Windows Vista, The latest version is "52.9.0esr" according to this article: https://support.mozilla.org/en-US/kb/end-support-windows-xp-and-vista You can download that version from here for Win x32: (Choose your language for example "en-US" for American English) http://ftp.mozilla.org/pub/firefox/releases/52.9.0esr/win32/ And for Win x64 from here: http://ftp.mozilla.org/pub/firefox/releases/52.9.0esr/win64/

Please let me know if there is something.

Hi, your Firefox identified itself in a peculiar way -- there is extra stuff at the end:

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0/3Cl48Dtb-03

That may cause some sites not to recognize that you are running the latest version of Firefox.

Based on other threads, this might be caused by using Avast Anti-Track. Is that something that might be running on your system?