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UPDATE MY FIREFOX

Your Firefox version on Linux appears to be the old Firefox 113.0 as the Whatsapp web site is looking for Firefox 115 or newer.

If you are using a package build installed in your package manager and there are no more updates then perhaps your version of Linux distro is no longer supported with package updates. You either need to update to a currently supported version of your Linux distro or another one or use the Firefox Linux tarballs from Mozilla as they get internal Firefox updates like the macOS and Windows versions. Just make sure wherever you put the tarball version has read/write permissions on the folder for the user to get updates as a easy way is to have folder in Home.

https://support.mozilla.org/en-US/kb/install-firefox-linux https://www.firefox.com/download/all/desktop-release/ (Firefox 145.0 Release) https://www.firefox.com/download/all/desktop-esr/ (Firefox 140.5.0esr)

I will be keeping this thread unlocked.

Or If this is with Firefox on your phone (Android or iPhone) then this likely means your Firefox version on the phone is too old as the web whatsapp site wants users to have Firefox 115 or newer.

https://support.mozilla.org/en-US/kb/update-latest-version-firefox-android https://support.mozilla.org/en-US/kb/firefox-available-iphone-or-ipad-my-language