The UserAgent you used to post with is Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:93.0) Gecko/20100101 Firefox/93.0 It appears you are using a Ubuntu package build of Firefox 93.0 in which Mozilla released it back on October 5, 2021. The build you have is updated in the package manager in your Linux distro however due to how old the Firefox 93.0 is, I would not be surprised if your version of Ubuntu or a flavour of Ubuntu is EOL with no more package updates. You can search to see if there are alternate repositories to update Firefox on your Linux distro, could try Snap version of Firefox though they can have their own issues. Or you can use the Firefox tarball from Mozilla.org or you can update your Linux distro to a current version. The Firefox tarball for Linux can be downloaded at https://www.mozilla.org/firefox/all/desktop-release/linux64/ It is basically an archive (and not a package or installer or such) as you just extract it and run the firefox script or firefox-bin in firefox folder to start Firefox. You need to make sure wherever you put the Firefox folder that it has read/write permissions for the user to get internal Firefox updates from Mozilla. There should be Firefox icons you can use for a launcher shortcut in the firefox/browser/chrome/icons/default/ folder. https://support.mozilla.org/en-US/kb/install-firefox-linux