Renny something must be wrong with that installation file maybe or with your pc, i dunno.
I never had problems with FF. As a coder i can say FF is the best for web development, it has a lot of helping tools (LiveHeaders, WebDeveloper toolbar, cookie management, JavaScript Debugger). Still as a surfer i also like FF, if the rendering process would as fast as at Opera it wouldbe the best browser.
My favourite browser is Opera, cause it`s fast and very easy to use, has a lot of features that i like.
About IE, i forgot a lot of time ago about it
Cheers!