Smart Toobar is a Firefox add-on which enables you to check Google page rank and alexa rank of a website. This toolbar is not an official product of Alexa, it is a product Smart Pagerank.
Using smart toolbar you can

See the Alexa Rank of every page you visit.
See the Google PageRank of every page you [...]

PicLens is a Firefox extension that allows you to launch full screen slideshows while browsing photos.
With piclens installed you can full-screen slideshows while browsing Google or Yahoo images or Flickr. Piclens works with sites that support media RSS. The image you clicked on opens in full screen with thumbnails for other images on the [...]

Wyzo is a new browser built on Firefox core and with a integrated BitTorrent Plugin. Wyzo promises to give you easier access to your favorite media sites, downloading media content.
The bittorrent downloader is integrated in wyzo download manager, so it becomes easier for you to download content even if you don’t know much about how [...]

Firefox has a good number of extensions to make it powerful web browser, these extensions may not be safe and they can make your computer vulnerable to hackers. Security Researcher Christopher Soghoian based at Indiana has found that the process used to update some of these add-ons automatically appears to be flawed, and allow hackers [...]

BlueOrganizer is a firefox add-on from AdaptiveBlue, which allows you browse the web faster and smarter in just a single click. It helps you organize your life online, it understands what is in a page like books, movies, restaurants, etc and then links them to the online tools to make browsing easier.
For example you [...]

Lifehacker came up with a firefox extension to pimp Google Reader in Firefox. Better greader is a Firefox addon that rolled up three greasemonkey scripts (maximizing the viewing area, skipping Google’s default subscribe mechanism, and adding keyboard shortcuts.) in one extension.
What it does:

You will get maximum amount of space for the feed viewing area.
Adds keyboard [...]

We all know Firefox is an open source project and is a product of Mozilla foundation, but we never thought of how Mozilla foundation is making money from firefox. APCmag published an interview with Mozilla Fondation CEO Mitchell Baker, there she reveals that Mozilla foundation is making millions per year from Firefox.
The general assumption [...]

Mozilla foundation has released Firefox 3 Alpha with code name Gran Paradiso Alpha 4. This release version is for testing purposes and is built on the next generation of Mozilla’s layout engine, Gecko 1.9. According to Mozilla Developer site there are no significant unser interface changes, however there are many core layout and rendering improvements.
Downloading [...]