google toolbar, alexa and seo quake firefox addons, but i keep them disabled most of the times. In fact most of the time i use Opera, only rarely i use firefox with those add ons enabled.
__________________ ServerPoint.com - a true hosting company offering online presence solutions since 1998 Web Hosting, colocation, dedicated servers, Virtual Private Server (VPS) hosting Wholly owned multi homed network, servers and facilities
None, they just aren't useful and they all waste screen real estate and reduce my privacy. Besides, firefox has a builtin search box and my KDE environment lets me search by hitting alt-f2 and typing gg:search_term
Just the Web Developer toolbar for FF. I keep it hidden when not in use.
__________________
Get your facts first, and then you can distort them as much as you please. - Mark Twain Paw-topia --- FreewareDog --- Beaches Designs All My Sites Are Proudly Hosted @ HostGator
Google's toolbar because, even if they are invading my privacy, they're not going to find much of anything. I don't have anything to hide; why should I care that Google knows I like WMT, IHY, Matt Cutts' blog, my blog, and my fantasy baseball league site?
That, and I've always liked the popup blocker in it.
StumbleUpon's because I like Stumbling once in a while to find the shiny diamond buried in manure...or at least a half-decent cubic zirconia.