Maybe I can help you if

you can tell me what's really wrong with your Firefox installation other than the its limitation on some IE only features.

You complained but never gave a substantial reason, which hardly convince other readers.

Google bar has popup block at a expense of adding an entire toolbar. I used it and it did block popups but if offers no other substantial benefits and takes too much space in my opinion. Don't you know google search is also built-in in Firefox, just Ctrl+K type keywords and Enter. It's that easy.

Firefox has a no non-sense clean design that maximize screen real estate for one thing --- web browsing. And it does it prettry well.