Firefox profiles

  • Start the Profile manager
    • Firefox.exe -P
    • about:profiles  (but less configuration available when opening in browser)
  • Open external links in profile that is active. If no profile is active, open the profile manager
    • Edit the profiles.ini  (find in Users/%User%/AppDate/Roaming/Mozilla/Firefox)
    • 1) The parameter -no-remote should be actually in your default profile target, so add the -no-remote to the target of the shortcut you’re actually using to launch your default Firefox. Remove the -no-remote parameter from the non default profile.
    • Check your profiles.ini file as mentioned above. It should contain following lines at the very beginning of the file:
      [General]
      StartWithLastProfile=0
      
      [Profile0]
      ... file continues...
      

      If it does not contain the first two lines, backup the profiles.ini and add the lines. Or change the StartWithLastProfile value from 1 to 0.