Extensions by Weekly Downloads
CuteMenus Classic Requires Restart
DataSheet Fire Finder Requires Restart
Search for electronic components datasheet
Memory Profiler Requires Restart
An experimental memory profiling tool.
gBing Requires Restart
Search Bing from Google
Dead Link Checker - MirrorChecker.com Requires Restart
Checks Free File Hosts for Link Status with right-click menu.
Works with selected (highlighted) text & clickable links.
Rapidshare, 4shared, Zippyshare, Zshare, LetitBit, Badongo, Filefront, Speedyshare, Uploading, BigUpload, YouSendIt & many more!
The Irregular and Phrasal Verbs Requires Restart
The Irregular and Phrasal Verbs List
Tab Catalog Requires Restart
This shows contents of all of tabs as a thumbnail-style list.
monkeyfly Requires Restart
Twitter enhancements include: grid panel, easy photo upload, @ suggest, inline reply, lightbox style profile, vi-based shortcut, link tracking
Spam Control Requires Restart
Control use of email addresses, use temporary email addresses and auto forwarders to help effectively combat spam. Easily make use of free services like spamgourmet and temporary inbox.
Disable Links Requires Restart
Mailfrom Requires Restart
Enables mailto links to point to webmail services for composing email.
Zenbu-Robot Requires Restart
This is a Joke Add-on.
Externals of Firefox and Thunderbird are changed.
MailCatch: Temporary Emails Requires Restart
Generate random email addresses and checks them out quickly. This extension uses the MailCatch.com service. No registration needed.
Geo Requires Restart
Opens useful sites for pages geographically marked with ICBM or geo.position META.
As the use of these meta elements has been niche, at best, I'm discontinuing future support for Firefox 4 and above.
Image Spark Requires Restart
Add images to your Image Spark account by right clicking on any image.
AdChange For AdblockPlus Requires Restart
Replaces Ads deleted by AdBlock Plus with your own images (local disk) or Facebook album or Flickr search or even netvibes and igoogle gadgets.
FireMule Requires Restart
Add multiple downloads to eMule/eDonkey2000 at once.
Reload Tabs Progressively Requires Restart
Limits number of reloaded tabs in a time.
FireDictionary Requires Restart
By moving the mouse cursor, a translation appears on the sidebar. FireDictionary finds the translation as a real-time operation when you move the mouse cursor...
OSM Links Requires Restart
This extension adds entries to the context menu, that can help you to send Links or Text that contain GPS-coordinates to the OSM Links website. This enables you to switch between many OpenStreetMap-based SlippyMaps much faster.