Results 1 to 3 of 3

Thread: The “EASY” way to use both Firefox 3 & 4, and easily switch between them !

  1. #1
    hackerman1 is offline Senior Member
    Join Date
    Dec 2008

    Default The “EASY” way to use both Firefox 3 & 4, and easily switch between them !

    hi !

    The “EASY” way to run both Firefox 3 & 4:

    1. duplicate the existing profile
    2. name them F3 & F4
    3. duplicate profiles.ini
    4. name them profiles.F3 & profiles.F4
    5. create a bat-file, Firefox 3.bat:

    COPY C:\Users\HACKERMAN\AppData\Roaming\Mozilla\Firefox \profiles.F3 C:\Users\HACKERMAN\AppData\Roaming\Mozilla\Firefox \profiles.ini

    START "" "E:\SYSTEM\FIREFOX 3.lnk"


    6. create a shortcut to Firefox 3, (firefox.exe in the firefox-3 folder), name it FIREFOX 3

    7. create a bat-file, Firefox 4.bat:

    COPY C:\Users\HACKERMAN\AppData\Roaming\Mozilla\Firefox \profiles.F4 C:\Users\HACKERMAN\AppData\Roaming\Mozilla\Firefox \profiles.ini

    START "" "E:\SYSTEM\FIREFOX 4.lnk"


    8. create a shortcut to Firefox 4, (firefox.exe in the firefox-4 beta folder), name it FIREFOX 4

    9. create shortcuts to Firefox 3.bat & Firefox 4.bat, put them on your taskbar / desktop.

    both bat-files & both shortcuts (Firefox 3.lnk & Firefox 4.lnk) should be in the same folder: "E:\SYSTEM"
    now you can use both versions without having any trouble with your add-ons etc. since each version uses its own profile.

    NOTE: the bat-files above are of course only examples !

    of course you can change the paths, "E:\SYSTEM\" is where i have MY bat-files & shortcuts.
    you should also change the paths in the bat-files to fx. C:\Users\%username%\.....", or your own username instead of "HACKERMAN".

    but there is one good reason why i use direct and not relative addressing in the path,
    if i use my ADMIN-account instead of my USER-account then i can still use the same profiles.
    otherwise i would have to create double profiles also on my ADMIN-account, and i would also have to update / synchronize the profiles on both accounts.

    why use shortcuts to firefox.exe in both bat-files ?

    otherwise you would have to use direct addressing, and have to switch folder (cd "C:\Program files\....", before starting firefox.exe,
    but since shortcuts "know" where the exe-file are, it´s easier to use a shortcut.
    also if you change folder fx. when installing a new version if Firefox, then you only need to change the shortcut, not the bat-file.
    Last edited by hackerman1; 8th October 2010 at 15:53.

  2. #2
    XD555 is offline New Member
    Join Date
    Oct 2010


    Wow! Cool trick. I'll try it when I'm Free.

    Thank you! :-)

  3. #3
    kunu's Avatar
    kunu is offline Windows Enthusiast
    Join Date
    Oct 2010


    thanx for this fantastic trick.....

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22