9,050 weekly downloads
Add Startpage - The World's Most Private Search Engine - to your search box. Startpage does not record your IP address. Search the Web in the best possible privacy!
654 weekly downloads
This is an officially supported GenScript Search Add-on, provided by GenScript. The GenScript Search Add-on can enable you get access to comprehensive biology services, products, and useful bioinformatics tools much more easily and conveniently.
518 weekly downloads
You can search easily the Google Play (Android Market)
508 weekly downloads
Accurate purchasing search engine. http://en.makepolo.com/
386 weekly downloads
Search your LinkedIn network for the people you need when you are on any Web site.
379 weekly downloads
o-o-0-o-o makes google search better, open popular sites by 1-2 letters, gives you a lot of search shortcuts and show 30 google results. Addition o-o-0-o-o wingOwing.
290 weekly downloads
Resolve any telephone number to its geographic location.
It not only tells the location but the operator also.
282 weekly downloads
Search java class with given name (uses regexp)
279 weekly downloads
Add Startpage to your search bar today. Startpage is a private search engine that will not collect or share any identifiable information. The search utilizes SSL encryption between you and Startpage. Search using the best privacy engine available.
275 weekly downloads
Search The Library of Congress catalog.
267 weekly downloads
Bitcoin Block Explorer allows you to search for information about the blocks, addresses, and transactions in the Bitcoin blockchain.
261 weekly downloads
Find and download Excel templates and solutions for business analysis and productivity. Excel and spreadsheet based solutions from developers world wide are categorized based on their ability to facilitate business decision making and efficiency.
257 weekly downloads
SERPAnalytics is a new seo tool to analyze SERPs. This plugin allows you to search in Google and analyze the obtained results in SERPAnalytics.
257 weekly downloads
The search engine for links using SEOmoz OSE. Enter a URL to start searching billions of URLs and trillions of links.
(Read very carefully: This Firefox Add-on is not built nor maintained by SEOmoz and they will not provide tech support for this)