Tabs are an important aspect of using Firefox. But managing all those tabs can be a real issue without the help of these handy extensions. Read this blog post by Don Reisinger on Webware.

FireStatus is a Firefox 3 extension that allows you to send status updates, notes and URL links simultaneously to multiple social networks and services, like Twitter, FaceBook and FriendFeed. It also displays updates from these services in notification popups, for a more "live" communication with your friends.

GenITeam is working on a new app called GeniDo that will let Basecamp customers work offline and sync later.

Terrence Ryan created Basecamp CFC so he could export an entire Basecamp project as a PDF file.

An extension to add addressbook-related options to the context menu.

Readeroo is a simple Firefox plugin that lets you "queue up" articles you might not have the time to read now, and then access them later (the name comes from "Reader" and "Queue"). It is powered by del.icio.us.

Designers will love the usefulness of ColorZilla, a Firefox extension that provides color readings in RGB and hexadecimal format.

"Taglocity gives you control over your email again. And it returns a nice chunk of your day back to you!"

The Resurrect Pages extension lets you visit offline websites that are unavailable for one reason or another.