Multiple mozila install steps on one pc which run same time both

Install First old version of mozilla firefox in custom option
-- next
Uncheck the below option -- next

Edit path as in below image – next

Uncheck the box - next

-- next

Donot check below check box

Now Run Mozilla 3.0 Setup same as previous version installed

Edit path as in below image – next

Uncheck the box - next

Donot check below check box

Create shortcut to desktop of mozilla 2

Create shortcut to desktop of mozilla 3

Rename your desired name to shortcut

Right click on Shortcut then click properties

Select Shrotcut TAB point to target column as shown in below image
Add –no-remote –p as shown in below

Same have to do For Mozilla 3.0 Shortcut also after completing of adding –no-remote –p in both shortcut

Open any one of the shortcut
You will get below Wizard

Create one profile

Give your Desired Name

Now this both profile u can use simultaneously Mozilla Multiple Version

Note:
If you have open default profile for mozilla 2 and you have to open mozilla3 then select mozilla profile don’t select default profile because the default profile is using by Mozilla 2.0