Something that has improved my quality of life considerably in the last few days is a firefox theme called PimpZilla. If you have a love for the finer things in life coupled with terminally bad taste then you will love the bling, the fur, the gold scrollbars and the leopardskin. Furthermore you will gain the highest respect from pimps, rappers, players and many other baad dudes. It’s that little touch of class that you deserve. Because you’re worth it etc.
The other life-enriching plugin I’m currently loving is FlashBlock. If you’re sick of annoying sounds, flashing animations and pop-up/unders but need flash for certain things then install it now. All flash is blocked by default and replaced with a small icon. If you want to see it, just click the icon and you’re in business. Coupled with AdBlock you can PwN the web.