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quickFilters

Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.

By popular demand, supports SORTING filters alphabetically.

Rated 5 out of 5 stars (19)
9,609 users
Updated September 3, 2015

ColorZilla

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Rated 5 out of 5 stars (304)
276,583 users
Updated September 3, 2015

Add-ons Manager - Version Number No Restart

Restores add-on version number inside Add-on Manager for latest builds of Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (5)
639 users
Updated September 3, 2015

Similar Sites - Find The Best Related Websites

Instant access to the best websites related to the site you are browsing!

Rated 5 out of 5 stars (20)
31,543 users
Updated September 1, 2015

Connectify for Infusionsoft No Restart

Connectify.io is absolutely FREE simple to get started. The best part is this extension is the ease of use and remarkable idea of combining SMS with Infusionsoft directly in your browser. Search contacts, create tags, complete forms, and much more.

Rated 5 out of 5 stars (2)
13 users
Updated September 1, 2015

ThunderBirthDay

Display birthdays from the Thunderbird addressbooks as events in Lightning.

Rated 4 out of 5 stars (81)
20,185 users
Updated September 1, 2015

Element Hiding Helper for Adblock Plus No Restart

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (447)
735,700 users
Updated September 1, 2015

Open With

Quickly test out your web pages in Internet Explorer, Chrome, Safari, or Opera. Open With opens the current page in your other browsers with just one click. Add Open With to your menus, toolbars and developer toolbox today!

Rated 4 out of 5 stars (177)
18,795 users
Updated September 1, 2015

tzpush

Z-Sync to Thunderbird Addressbook
Will sync Thunderbird address book to Zentyal, Zarafa, Horde and outlook.com/hotmail.

Rated 4 out of 5 stars (11)
1,463 users
Updated August 31, 2015

Torrent Tornado

A Torrent Client for Firefox and SeaMonkey, runs everywhere, created in pure JavaScript without binary software!

Rated 4 out of 5 stars (45)
31,693 users
Updated August 31, 2015

Live HTTP Headers (Fixed By Danyial.com)

View HTTP headers of a page and while browsing.
Live HTTP Header Fix By Danyial ITs Working On Firefox Again Fixed Reply Problem

Not yet rated
11 users
Updated August 31, 2015

QFO - Quick Fuck Off

This extension serves the purpose of providing instant access to the FOAAS web service. FOAAS (Fuck Off As A Service) provides a modern, RESTful, scalable solution to the common problem of telling people to fuck off.

Rated 3 out of 5 stars (2)
22 users
Updated August 31, 2015

SmartTemplate4

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (49)
17,156 users
Updated August 30, 2015

uBlock Origin No Restart

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (182)
261,589 users
Updated August 30, 2015

FoxClocks No Restart

FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

Rated 4 out of 5 stars (308)
67,292 users
Updated August 29, 2015

UnMHT No Restart

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 5 out of 5 stars (217)
79,391 users
Updated August 29, 2015

Dict

Looks up the definition of words on a Web page.

Rated 5 out of 5 stars (14)
1,177 users
Updated August 29, 2015

Theme Font & Size Changer No Restart

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (147)
89,959 users
Updated August 29, 2015

Bluhell Firewall No Restart

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 5 out of 5 stars (233)
137,088 users
Updated August 29, 2015

CipherFox

Displays the current SSL/TLS cipher, protocol and certificate chain in the Add-on bar and Site ID dialog

Rated 4 out of 5 stars (27)
6,171 users
Updated August 28, 2015