This guy decided to install the top 100 most popular Firefox extensions all at the same time. He's got screenshots & a shot of what his right-click looks like... it's hilarious.

"Yesterday I decided to undertake an experiment. My favourite browser, Firefox, allows its users to add extensions. Currently 1148 extensions are available at Mozilla update. I decided to install 100 of the most popular extensions at the same time, trying to avoid those that duplicated others functionality."