Seo Quake :Seoquake is a Mozilla Firefox SEO extension aimed primarily at helping web masters who deal with search engine optimization(SEO) and internet promotion of web sites. Seoquake allows to obtain and investigate many important SEO parameters of the internet
Cyber Search :Adds advanced Google Search capabilities to the Firefox 3 address bar. Supercharge the "Awesome Bar" with instant search results that appear as you type!
Skip Screen : Skips unnecessary pages on sites like Rapidshare, Megaupload, zShare, Mediafire, and more. Try it out,
DownThem All : DownThemAll is fast, reliable and easy-to-use! It lets you download all the links or images contained in a webpage and much more: you can refine your downloads by fully customizable criteria to get only what you really want!
Easy Comment : Automatically fill out Blog Comment Forms. If you're into the blogosphere, this is a must have!
Multi Links : Multi Links lets you open, copy or bookmark multiple links at the same time rather than having to do them all individually.
Grease Monkey : Allows you to customize the way a webpage displays using small bits of JavaScript. ...
Search Preview : The extension previously known as GooglePreview. Inserts preview images (thumbnails) and popularity ranks of web sites into the Google, Yahoo and Bing search results pages.
Video Download Helper : The easy way to download and convert Web videos from hundreds of YouTube-like sites.This works also for audio and picture galleries.
Share Holic : Shareaholic is the easiest way to share interesting webpages using Facebook, Twitter, Email, Gmail, Reader, Bookmarks, Buzz, Evernote, Bit.ly, and more... Works with 100+ services. This is the ultimate tool for the link sharing addict.
WOT : Would you like to know which websites you can trust? The WOT add-on is a safe surfing tool for your browser. Traffic-light rating symbols show which websites you can trust when you search, shop and surf on the Web.
Stumbleupon : StumbleUpon helps you discover great websites that match your interests. Simply click the Stumble button and see the best websites. There are over 500 topics to choose from, and, the more you use it, the better your recommendations become!
Flagfox : Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more.
Similar Web :Instant access to the best sites related to the one you are browsing! Vote if sites are similar or not and personalize your results. Get related articles and live web comments for any site. Easily share sites with friends through Facebook or Twitter.