So this guy decided to install 200 Firefox extensions,, just to see if he could do it.

Fun facts:

• Firefox worked with 200 extensions installed.

• It took six whole minutes to start under Windows Vista.

• You know how some extensions throw off a popup window when you start Firefox? With 200 extensions installed, Firefox throws off 47 popup windows on startup.

• The extensions added so many toolbars that there was only a two-inch viewing area on a 24-inch monitor. Check out this ridiculous screenshot.

• Memory usage: "Firefox is notorious for its memory leaks but it didn't turn out to be as bad as I thought. By the time Firefox would start after a few minutes it had climbed up to 145MB but it capped off around 195MB."

Via Lifehacker, which wants to know how many Firefox extensions you have installed. I have 23: Adblock, Add Bookmark Here, BugMeNot, Cooliris Previews, Copy Plain Text, CustomizeGoogle, del.icio.us Bookmarks, easyGestures, ErrorZilla, Extended Statusbar, Flashblock, ForecastFox, GreaseMonkey, IE Tab, Linkification, OpenBook, Searchbar Autosizer, SmartSearch, Stealther, Tab Mix Plus, Talkback, TinyURL Creator, zoomFox.

Note that I don't use all of those extensions. Some don't work, some proved to be useless, and some of them are superseded by others -- for instance the del.icio.us bookmarks extension takes over all bookmarking, so the other bookmarking extensions are useless to me (though they are useful if you don't use the del.icio.us extension).