Verify that you meet the System Requirements (GTK+ and GLib) for the current Firefox release. *https://www.mozilla.org/en-US/firefox/123.0.1/system-requirements/ You can find the full installer of the current Firefox release (123.0.1) in all languages and all operating systems here: *https://www.mozilla.org/en-US/firefox/all/#product-desktop-release *https://www.mozilla.org/en-US/firefox/123.0.1/releasenotes/ You merely need to extract the files in the Firefox tar.bz2 archive to a folder, possibly in your home directory (~/firefox) and launch the firefox script of firefox-bin program. *https://support.mozilla.org/en-US/kb/install-firefox-linux