In an earlier poll I was a bit surprised to learn that FireFox was so popular, over 95% have voted for FireFox to date.

So, let's take a little time and please list your favorite, most useful, FireFox add-ons (with links to the add-on) and add a few words on how often and how useful do you find the add-on.

Thanks.

The "end game" will be an table of our recommended FireFox plugs, after a short voting period where we rank the "contestants" :-)

OK,
here is my list:

1. ChatZilla - an IRC client.
2. Download Statusbar - view and manage downloads from the statusbar.
3. Foxmarks Bookmark Synchronizer - keep your bookmarks synchronized across machines.
4. Smart Bookmarks Bar - hides bookmarks names and only shows icons (useful when you don't have enough place on your bookmarks bar).
5. WebMail Notifier - for mail providers that give only web access for free accounts

I try (enable and disable) a number of add-ons for FF3. Here are current my "must haves"....

1. ColorfulTabs - I just love the colors.
2. FireFTP - nice to have a handy way to upload forum and wordpress plugins from the browser :-)
3. Web Developer - this is a must for any web developer. The toolbar is AMAZING!

I have a few more active, but I could get by without them.

I have 2 of the add-ons on Neo's list. When I installed Firefox 3, I found that DOM inspector ceased to exist, and must be installed as an add-on. So, I will list it here.

DOM Inspector

I didn't see this addon before, so here it is - FlashBlock - "Flashblock is an extension for the Mozilla, Firefox, and Netscape browsers that takes a pessimistic approach to dealing with Macromedia Flash content on a webpage and blocks ALL Flash content from loading." My personal favorite, saves lots of time when loading pages.

Great extension, and you can tell it to allow flash from certain sites that you routinly view flash on too!

I try to keep add-ons at an absolute minimum. I may be losing out on some of the niftier features, but my time is too valuable for me to try out add-ons just to discover they were written in five minutes by some beginner /-:

Open in Browser - add "open in browser" to that pesky "download" or "open with selected application" dialog. Managed to get this to work in Firefox 3 with a bit of patchwork, although I think some of the recent FF3 upgrades broke that again.

It's All Text - add an Edit button which invokes your favorite editor (Emacs, natch) to edit text instead of those nasty edit boxes which are always too small and don't do anything useful or fun when you press Esc Meta Alt Control Shift

Restart Firefox - incredibly lame that this is missing from Firefox itself. Another one I managed to hand-patch in order to make it work with FF3, but again, alas, looks like I will have to do it again because it's missing from my menu once more.

A couple of runners-up which I use intermittently:

NoScript - a nice safety net, especially if you are confined to a Windows box on a gloomy, desperate day. Gets in the way sometimes but hey, that's security.

Linkwad - pretty lame, but I have not yet found a session manager which would allow me to save sets of tabs in a convenient form, and access them from anywhere. I really need to find something better. I'm a certified tab-aholic so my needs are probably a bit out of the ordinary. Any suggestions for what to try next?