Instead of downgrading to an older, insecure version of firefox and changing your update settings, you should consider these alternatives: install firefox extended support release firefox extended support release (esr) is an official version of firefox developed for large organizations like universities and businesses firefox esr does not. Download older version of mozilla firefox. Download mozilla firefox, a free web browser firefox is created by a global non-profit dedicated to putting individuals in control online get firefox for windows, macos, linux, android and ios today!.
download older version of mozilla firefox
alternative link download