Firefox keeps crashing?

[Elton]

Well, every time I open firefox, google pops up (as it is my homepage) and then when I try to search for something and I press enter... my laptop freezes and I can't even shut it down via start menu. I can then only shut it down by forcing it.
Anyhow, my laptop works perfectly fine when I don't open firefox. When I use another search engine (for example: Chrome) then it works.
I have tried shutting it down the normal way, without opening firefox and it works that way aswell.
Now though, I am using another user on this laptop which works perfectly fine.
....HELP! Please