Well, why would you want to do this? Basically, you can use Firefox instances that are of different versions or maybe even with different profiles.
As everyone knows, Google released its own browser tuesday. I was among the first to download and test it, though apparently I am among the last to blog about it I was quite busy.
Google Chrome is an extremely minimal yet highly functional web browser. It achieves a pretty good balance between these two. While I was reading the comic book that the Google provided (and yes, I read all of it without getting bored ) I began to realize how great ideas they were!