Add-ons
My Favorite Add-ons
by nazir
About this Collection
+ https://www.eff.org/https-everywhere http://jslib.mozdev.org http://tagzilla.mozdev.org http://mono-project.com/Moonlight
17 Add-ons in this Collection
Enigmail
by Patrick Brunschwig
4,271 users
Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.
Remove Duplicate Messages
by Eyal Rozenberg
98,638 users
Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).
Live HTTP Headers
by Daniel Savard, Nikolas Co
40 users
View HTTP headers of a page and while browsing.
JavaScript Debugger
by James Ross, Robert Ginda, others
939 users
As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.
Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.
Český slovník pro kontrolu pravopisu
by Mozilla.cz
15,788 users
Slovník pro kontrolu pravopisu pro aplikace Mozilla
ChatZilla
by Gijs Kruitbosch, Robert Ginda, others
13,393 users
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
DOM Inspector
by SeaMonkey Council
13,764 users
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
Quote Colors
by Malte Ruecker
121 users
Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
Scriptish
by Erik Vold, Nils Maier, others
10 users
The greatest user script engine on the Internet (a fork of Greasemonkey).
Launchy
by gemal
13 users
Launchy will enable you to open links and mailto's with external applications...
Folderpane Tools
by chuonthis, Philip Chee
192 users
Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.
QuoteCollapse
by Michael J Gruber
1,033 users
Collapse and expand quotes.
Contributors: Stanimir Stamenkov, Dillinger
FxIF
Mnenhy
by Karsten "Mnyromyr" Düsterloh
24 users
The primary goal of the Mnenhy project is to make some enhancements to SeaMonkey MailNews/Thunderbird, since there're still plenty of comfort functions missing if compared to Netscape 4.x and other mail and news clients.
Config Descriptions
by Dave G
10 users
Shows source comments for advanced application preferences in about:config
What are Collections?
Collections are groups of related add-ons that anyone can create and share.
Explore CollectionsTo create your own collections, you must have a Mozilla Add-ons account.
