I know this goes against all the forces of the Male ego and rationale, but here's a tip I learned long ago.
Read The Directions
The fact that you have Linux running and yet can't figure out how to bend FIREFOX to your will leads me to believe you used an install disk of Linux, rather than compile your own, as Redhat is one of the more user friendly versions.
It just BOGGLES the mind that you'd go through the trouble of using Linux but can't be bothered to make your browser do your bidding re: something so simple and mundane to fix that most people fix it the first time it pops up.
You keep speaking ill of the browser and your solution is to use Opera. This isn't a "browser war" thread, I just don't like you continuing to put people off on what is roundly heralded as one of the best IE replacements out there.
Seriously dude, read the "help", FAQ, or spend more time tinkering with it - your pR0n, warez, and music searches are so much faster when you have your browser jumping through the hoops as you command it to.