Email tools

by Mpohalos

18 Add-ons in this Collection

Lightning by Mozilla Calendar Project

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 1,035 reviews

307,519 users

Allows bidirectional access to Google Calendar

Google Contacts by H.Ogi

Rated 3 out of 5 stars 311 reviews

59,915 users

Access to Google contacts and synchronize them with Thunderbird address books.

Silvermel by ShareBird

Rated 5 out of 5 stars 577 reviews

55,340 users

A Creamy Silvery Experience

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 275 reviews

30,848 users

Displays the address books in a sidebar in Thunderbirds 3-pane-window and can be toggled with the F4 key or a toolbar button.

Visit my Contacts Sidebar site for recent versions and news.

Remove Duplicate Messages by Thorsten W. Schmidt

Rated 4 out of 5 stars 121 reviews

44,686 users

If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by rightclicking on a folder and choosing "Remove duplicates..."

Zindus by Leni Mayo

Rated 4 out of 5 stars 207 reviews

31,826 users

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Duplicate Contact Manager by Marian Steinbach, Copelnug

Rated 3 out of 5 stars 95 reviews

22,885 users

Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.

EMail Address Crawler by CySlider

Rated 4 out of 5 stars 90 reviews

3,446 users

Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.

MinimizeToTray Plus by Michael B.

Note from Mozilla: This add-on has been discontinued. Try MinimizeToTray Revived instead.

Minimize applications to the system tray.

BiDi Mail UI by The BiDi UI Team, eyalroz

Rated 4 out of 5 stars 27 reviews

3,846 users

Direction control and BiDi-related charset misdetection correction

MinimizeToTray by Mook, Brad Peterson

Rated 4 out of 5 stars 466 reviews

12,078 users

Minimizes Mozilla windows into the system tray. Also includes a right clickable tray icon menu to further load only the windows you want visible...

English - Greek Spelling dictionary by Kostas Papadimas (pkst)

Download Now


Rated 4 out of 5 stars 61 reviews

6,056 users

English-Greek spell-checking dictionary for Firefox, Mozilla thunderbird and Seamonkey mail for easier spell checking in bilingual text.If you need better spelling results try the respective stand-alone...

Auto Address Cleaner by markopee

Rated 5 out of 5 stars 45 reviews

11,659 users

Removes comment, display name automatically from addresses before sending mail.

Mark All Read Button by Mark S Baines

Rated 4 out of 5 stars 29 reviews

4,348 users

Adds toolbar buttons to Mark All emails as Read, Mark Thread as Read, and Goto Next Unread Thread.
  1. 1
  2. 2
Results 115 of 18

What are Collections?

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

Explore Collections

Recently Viewed