for daily browsing as it contains numerous unpatched security vulnerabilities compared to modern versions. Mozilla Support How to Report Issues or Find Data Crash Reports
: It supported OS X 10.6 (Snow Leopard) through 10.11 (El Capitan). mozilla firefox 450 1 old version
: If your goal is to recover data from an old installation (like bookmarks or passwords), you should look for the profiles.ini file in your AppData or Library folder rather than trying to run the old executable . Possible "450 1" Interpretations Firefox 4.0.1 : A minor patch to the major 4.0 release. for daily browsing as it contains numerous unpatched