I've been preaching this same message of internet salvation ever since Firefox was known as Phoenix. Firefox is THE better browser. Tabbed browsing will change the way you surf the internet (for the better) and I dont even remember what a pop up looks like!
Safari is an ok browser. Funny how the pro-Mac comment sounded a little arrogant, with no room for any other software to be as good. This is a common attitude among Mac users. Go ahead and love your Mac, I'll be creating content and earning a living with my PC while you enjoy your love fest. Macs do not have the same caliber of software when it comes to certain areas of engineering. Make all the pretty pictures you want on a Mac, I'll be designing things that bring the owrld into the 21st century.
I have NO idea why anyone would still use IE. It's slow, prone to spam, and requires a seperate window for each internet page you have open. How very 90's of it.
Right click the Firefox menu toolbar, choose customize. You should have a search field in the dialog that slides down. Drag that search icon into your toolbar, then close the customize dialog. You can then choose google as your default search engine! Built in, ready to go.