Extensions by Weekly Downloads
UrlParams Requires Restart
Shows you the GET and POST parameters of the current website in the sidebar...
Geolocation Requires Restart
This simple add-on allows you to enter your location using longitude and latitude (available from http://www.whatismygeolocation.com/ for free) for use with geolocation enabled websites.
Lock The Text Requires Restart
Encrypt your text data in browser before you submit it to a network
Conspiracy Requires Restart
Shows flag/country of involved Certification Authorities (CAs) for secured pages.
WikiSearch Requires Restart
Search Wikipedia through the context menu.
Extension Test Requires Restart
A simple add-on for extension testers, especially AMO editors and developers who plan to submit their add-ons to AMO.
Changes the mask character used in password fields.
Wepware - Capture and Share Live Content Requires Restart
Grab live snapshots of anything on the internet, organize your collected content into folders and share with friends through SNS.
Tategaki Requires Restart
Tategaki allows vertical writing-mode on mail compose window.
Slashy Requires Restart
Fixes Windows backslash file separators in links and images and other types.
Dog Ears Requires Restart
Mark important parts of a webpage to easily relocate them.
Removes all the junk from New Google Reader and just gives you the search and collapsable subscriptions + favicons. By DemianGod
Also you can install the Script for GreaseMonkey.
Download from: http://userscripts.org/scripts/show/30242
BNR Exchange Rates Requires Restart
Show the exchange rates from BNR in the statusbar.
PreviousPage Requires Restart
Shows previous page on the left side
Export for Thunderbird & Lightning Launcher Requires Restart
Export for Thunderbird & Lightning is the worldwide unique printing and exporting solution for Mozilla Thunderbird and Lightning for Windows.
Multi lingual user interface: English, German, French and Spanish
To fastest your browser to surfing internet without extension gif.
A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.
SmartWhois Launcher Requires Restart
This extension allows you to launch SmartWhois and perform a Whois query on the current URL. SmartWhois is a useful network information utility that allows you to look up all the available information about an IP address, hostname or domain...
Tabinta Requires Restart
Tabinta lets you insert tab characters in multi-line text input fields. The name itself is a shorthand for "Tab in Textarea"...
South African English spell checker Requires Restart
The South African English spell checker allows you to use place names, borrowed words, and other expressions that are unique to South Africa.
"No more eina, just a lekker spell checker!"