As another Extend Firefox 3 contest winner, HandyTag deserves a look.  This add-on for Firefox provides a complete set of the most relevant keywords when you bookmark a page.  Where do these keywords come from?  Many different sources from around the Web.
This comes in handy when you bookmark a page, and your not sure [...]

After winning the Extend Firefox 3 contest, I thought it might be worth checking out Pencil to see what all the buzz was about.  This add-on for Firefox is an open source tool for creating diagrams and GUI prototyping that everybody can use.  As they put it, “With the power of the underlying Mozilla Gecko [...]

Now when you hear mashing or mashups of services, you think of wacky combinations like Yahoogle or Microdigg. A web site or service that awkwardly brings two or more services together.  Ubiquity, a new Firefox add-on from Mozilla wants to turn mashing on it’s head.  How?  They are going to take a more natural [...]

Thanks to a new JavaScript engine (named TraceMonkey) it looks as if Firefox 3.1 is going to be getting a major boost in performance.
Here are the benchmarks thus far:

Be sure to check out Brendan’s Roadmap Updates for more.  Also here are a few handy links from John Resig on the testing:

SunSpider, 1.83x faster (released by [...]

Isn’t there already a text area resizer add-on for Firefox?  Yes, there is. Text Area Resizer & Mover however adds some more functionality and class to an already great Firefox add-on idea.
To use the add-on, just resize by right-clicking anywhere inside of the text area.  With this, dragging becomes an really easy task and [...]

The Extend Firefox 3 contest is all wrapped up, and they have announced some great extensions as the winners.  Out of well over 100 entries, here are the best of the best.
Best New Firefox Add-ons

Pencil
Tagmarks
HandyTag

For those of you who didn’t like Firefox 3, or haven’t gotten around to updating yet - you only have a few more months left.  On the Firefox 2 download page, Mozilla states:
Firefox 2.0.0.x will be maintained with security and stability updates until mid-December, 2008. All users are strongly encouraged to upgrade to Firefox [...]

Tired of looking at an empty screen when you load your new tab up?  Well, thanks to the Stylish extension and a few creative people, you can make the about:blank page a little better looking.
First step would be to install the Stylish add-on for Firefox.  Once you have done that, click on one of the [...]

Checking out Michael Horowitz printing tale of woe from Firefox, I have to say he is right.  Trying to print this page (test it yourself using print preview) looks like a horrible jumbled mess.  Try playing with the example article yourself - it is true!  Hold on, there has to be a fix for [...]

How is that for a Firefox add-on name?  Alright, truth be told I might have added a little to it.  The toolbar’s name is really just the Ultimate MySpace Toolbar.  I think my name has a little more flare though.  This MySpace toolbar offers a lot of nice features including:

Easily navigate MySpace from anywhere [...]