For testing purposes, I want to install two different instances of firefox on ubuntu - so that they don't share cookies. (I want to simultaneously login with both instances as different users to our website). How do I do that? I do it with Firefox & Opera, but I prefer Firefox (because of firebug).
Check out the profile argument like this:
firefox -profile "E:\myprofile"
Sorry about the windows file path ;) If you copy your main profile to a different profile, you will be starting a separate instance.
Make two users on ubuntu
user1 user2
Login as user1 start Firefox1
start some sort of terminal and ssh -X user2@host
start Firefox2
Or, did you mean two different versions of Firefox, say 3.x and 2.x?
http://www.command-tab.com/2008/06/18/how-to-run-firefox-2-and-3-simultaneously/
I believe that the URL above will help you. It is in relation to running FF2 and FF3 at the same time and as separate instances.
The above describes windows and mac but the concept is the same no matter what the OS. Upon installation don't merely allow it to go into the same old fire fox folder, give it a unique path; Then in firefox create a profile for each.
Brian Hodge
hodgedev.com blog.hodgedev.com