Favorites

by Alexander Salas Bastidas

76 Add-ons in this Collection

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 2,899 reviews

240 users

The first and only download manager/accelerator built inside Firefox!

Provider for Google Calendar by Philipp Kewisch

Rated 3 out of 5 stars 1,656 reviews

193,760 users

Allows bidirectional access to Google Calendar

Spanish (Spain) Dictionary by tnarik, RickieES

Rated 4 out of 5 stars 167 reviews

61,813 users

Spanish/Spain Dictionary

gContactSync by Josh Geenen

Rated 4 out of 5 stars 416 reviews

14,898 users

Synchronizes contacts & groups between Thunderbird and Google Contacts.

Mail Merge by Alexander Bergmann

Rated 5 out of 5 stars 230 reviews

71,339 users

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

Diccionario español México by eduardo_moreno

Rated 4 out of 5 stars 92 reviews

8,782 users

Diccionario para México.

Remote XUL Manager by Jorge Villalobos

Rated 5 out of 5 stars 36 reviews

13 users

Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.

Thunderbird Conversations by Jonathan Protzenko, Standard8

Rated 4 out of 5 stars 566 reviews

26,964 users

This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.

Diccionario español Argentina by Marcelo Poli, Ezequiel Dittler

Rated 4 out of 5 stars 93 reviews

15,067 users

Spanish dictionary for Argentina.

Stationery by Arivald

Rated 4 out of 5 stars 168 reviews

1,079 users

Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!

General Catalan dictionary by Toniher (Softcatalà)

Rated 4 out of 5 stars 40 reviews

12,982 users

Free Catalan (general version) spelling dictionary.

ThunderPEC by thunderpec

Rated 4 out of 5 stars 38 reviews

435 users

ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) e delle comunicazioni PCT e FatturaPA in Thunderbird.

Telify by michael-koch4096589

Rated 3 out of 5 stars 57 reviews

2 users

Converts telephone numbers into clickable links for use with CTI applications, SIP clients, Skype, Netmeeting, snom phones, the AGFEO TK-Suite Client and SerVonic IXI-PCS.

Notepad (QuickFox) by InBasic, J Benthum

Rated 4 out of 5 stars 191 reviews

12 users

Everyday note-taking solution.

Google Contacts by H.Ogi

Rated 3 out of 5 stars 307 reviews

11 users

Access to Google contacts and synchronize them with Thunderbird address books.
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
Results 115 of 76

What are Collections?

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

Explore Collections