There's quite a few guys around here that would kick your ass for using an ad blocker. You realize HLP is funded by ads right? I don't think the ad blockers are selective about letting the good ads through and just blocking the bad ones, but I might be one. I prefer something more like FlashBlock, since flash ads are about the only ones that are really that annoying these days. Helps cut down on a lot of annoying autoload B.S. Firefox 3.5 will have a Privacy mode similar to other browsers, so you probably won't need Stealther anymore. I use WebDev Toolbar on the rare occasion I might need to turn off Javascript, but I'm a web developer. Chatzilla? Meh. Get a real client. It's probably ok if you don't use IRC much, and you don't have builtin IRC with a multi-protocal IM app like Pidgin. My must haves are Firebug, Web Developer Toolbar, IE View Lite, and CoolIris (not as much as the first three). Again though, Firebug is only really useful if you like digging into the guts of a page once in a while. Tamper Data can be fun for form hacking too.