John Duncan's Seamonkey add-ons

by John Duncan

121 Add-ons in this Collection

Provider for Google Calendar by Philipp Kewisch

Rated 3 out of 5 stars 1,645 reviews

191,807 users

Allows bidirectional access to Google Calendar

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 260 reviews

4,803 users

Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.

Manually sort folders by Jonathan Protzenko, Itagaki Fumihiko

Rated 4 out of 5 stars 617 reviews

15,687 users

This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 390 reviews

222 users

Adds the ability to create and edit entries in the password manager.

gContactSync by Josh Geenen

Rated 4 out of 5 stars 416 reviews

16,041 users

Synchronizes contacts & groups between Thunderbird and Google Contacts.

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 354 reviews

94 users

Manage any SQLite database on your computer.

Mail Merge by Alexander Bergmann

Rated 5 out of 5 stars 226 reviews

64,296 users

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

LookOut by Aron Rubin

Rated 4 out of 5 stars 158 reviews

1,325 users

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).

Password Exporter by Justin Scott (fligtar), Jorge Villalobos

Rated 4 out of 5 stars 551 reviews

98 users

This add-on allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

Note: This add-on won't work in Firefox 57. It may eventually if the APIs to access passwords are implemented.

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 1,070 reviews

141 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Waterfox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 204 reviews

61 users

A simple note-taking extension.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 216 reviews

41 users

View HTTP headers of a page and while browsing.

Mail Redirect by Onno Ekker, Pawel Krzesniak

Rated 4 out of 5 stars 144 reviews

3,046 users

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 217 reviews

19 users

An HTTP analyzer addon for Firefox

UnMHT by arai_a

Rated 4 out of 5 stars 300 reviews

39 users

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.
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
Results 115 of 121

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections