Thunderbird

by Arno Nym

15 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.

German Dictionary by KaiRo

Rated 4 out of 5 stars 55 reviews

527,149 users

German Dictionary (new Orthography) for spellchecking in Mozilla products

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 155 reviews

93,408 users

Switch the signature on/off or choose a new one from your predefined set...

Remove Duplicate Messages (Alternate) by eyalroz

Rated 4 out of 5 stars 140 reviews

66,675 users

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

CuteMenus - Crystal SVG by mrtech, Static_Nexus, others

Rated 4 out of 5 stars 103 reviews

7,359 users

Note from Mozilla: This add-on has been discontinued. Try Menu Icons Plus instead.

Adds icons to all menus along with some other features...

Addressbooks Synchronizer by Guenter Gersdorf

Rated 4 out of 5 stars 56 reviews

34,359 users

Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers

Folderpane Tools by chuonthis, Philip Chee

Rated 4 out of 5 stars 120 reviews

47,337 users

Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.

Custom Buttons by Yan, cubegm, others

Rated 4 out of 5 stars 82 reviews

91,831 users

Gives a possibility to create custom toolbarbuttons...

Display Mail User Agent by Jürgen Ernst

Rated 4 out of 5 stars 102 reviews

37,982 users

Displays icon for user agent of received mails.

Nostalgy by Alain Frisch

Rated 5 out of 5 stars 138 reviews

9,520 users

Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.

Mnenhy by Karsten "Mnyromyr" Düsterloh

Rated 4 out of 5 stars 35 reviews

3,735 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.

Buttons! by chuonthis

Rated 4 out of 5 stars 63 reviews

2,098 users

Adds buttons to the Thunderbird toolbars such as Next! and Previous! buttons for navigating through all messages instead of just unread ones. See homepage for more...

Custom Buttons² by SCClockDr, nicholasalipaz, others

Rated 4 out of 5 stars 75 reviews

857 users

The Custom Buttons² Firefox extension provides the code base support necessary to create, maintain, import, and export custom toolbar buttons. The buttons can perform just about any task, with a large number of buttons already available on the exte...

Attachment Sizes by Frank DiLecce

Rated 4 out of 5 stars 56 reviews

3,002 users

Ability to see attachment sizes ...

Display mailing list header by Jürgen Ernst

Rated 3 out of 5 stars 6 reviews

510 users

This extension implements RFC 2369 for Thunderbird: Special mailing list header fields in the mail are parsed, and the links are displayed in the extended header view. You can click them to simply go to the archive, request help or unsubscribe.

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