oerr - Oracle Error Code Lookup - Ever wanted to use the oerr tool elsewhere than just your Unix command prompt? Enter oerr for the browser!
Just enter the 5-digit error code (or other keywords), and this simple yet handy Firefox add-on will search Oracle's 11g online docs for you.
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If you got an error while installing Themes, Software or Games, please, read FAQ.
mxr.mozilla - Firefox Addon mxr.mozilla search the Mozilla Cross-Reference site, free-text (a link to identifier search appears above the results). This is for the Mozilla Central, main mercurial (hg) repository for development of Gecko, XULRunner, and Firefox
Blekko (SSL) - Firefox Addon Blekko is a new search engine that excludes content farms, and utilizes slashtags. This search bar add-on utilizes SSL to protect searches between You and Blekko
Who is Hosting This? - Firefox Addon Who Is Hosting This.com is a popular webmaster tool that lets you discover who is hosting any web site, as well as publishing hosting reviews, our blog & more. The search plugin lets you query the site from your Firefox browser.
The tool provides a profile of the hosting company in question (where applicable), IP address and DNS information
File search engine - Ask4File - Firefox Addon File search engine - Ask4File - Firefox Addon - Find and download your favorite software, music, movies and more from file sharing sites like Rapidshare, Megaupload, Hotfile, Uploading and more for free
Domain availability checker - PutItLive.com - Firefox Addon Domain availability checker - PutItLive.com - This addon allows you to search for domain names using the PutItLive.com bulk domain lookup service.
Lookup domains for these extensions:
.com
.net
.org
.info
.us
.eu
.biz
.mobi
.asia
.cc
.in
.me
.name
.tv
And even more
Twitter Filter - Firefox Addon Twitter Filter is the only way to hide updates based on their source (e.g., foursquare, gowalla, TwitterFeed). To hide updates from a source, just click the "(X)" next to that source's name underneath a tweet.
To see the sources you have already blocked (and to unblock any of them), take a look at the bottom of the Twitter sidebar