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Expand mailing list recipients Requires Restart

Adds a toolbar button to expand address book lists to its recipients - useful to stripe out some of them when sending mail...

Rated 4 out of 5 stars (20)
21 users

Forward Requires Restart

Add Inline / As Attachment option to Forward button and Message context menu.

Rated 4 out of 5 stars (25)
95 users

ZNotes Requires Restart

Save everything you like. Simple text notes and pages downloaded from the internet, rich multimedia. Store any files and contacts from your address book with notes.

Rated 5 out of 5 stars (15)
3 users

SavedSearchThemAll Requires Restart

A Thunderbird extension to automagically extend all the saved searches to all the foders!

Rated 4 out of 5 stars (2)
16 users

TitleCase For Thunderbird Requires Restart

Transform strings into Title Case, Proper Case, Start Case, Camel Case, Upper Case, and Lower Case. Highlight your text and only changing what you highlighted.

Rated 4 out of 5 stars (14)
189 users

Reply to All as Cc Requires Restart

Send a reply for recipients as CC except the sender, when you do "Reply to All".

Rated 4 out of 5 stars (11)
24 users

Address bulk copy (アドレス一括コピー) Requires Restart

Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。
それを実現するためのアドオンです。

Rated 5 out of 5 stars (10)
615 users

Xuxen

Xuxen Basque dictionary.

Rated 5 out of 5 stars (11)
1,118 users

ThunderPlunger Requires Restart

Sorry but this addon is no longer supported in TB 60. See below.

This add-on provides a few new ways to keep Thunderbird clean.

Rated 4 out of 5 stars (31)
23 users

Colorific

Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.

Rated 4 out of 5 stars (14)
7 users

Littlebird for Thunderbird Requires Restart

Littlebird for Thunderbird, based on icons from art.gnome.org. Supports Thunderbird versions 53.0 to 60.0. From version 61.0, Thunderbird will drop support for full custom themes.

Rated 5 out of 5 stars (18)
3 users

Send to Things for Thunderbird Requires Restart

Create a new Things task from the current email you are viewing. Opens the quick add dialog with subject and message content pre-filled.

I've created this add-on as a user of Things, it is not created or endorsed by Cultured Code.

Rated 4 out of 5 stars (1)
1 user

Addons Quick Search Requires Restart

Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.

Rated 5 out of 5 stars (12)
4 users

Extension Auto-Installer

Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.

Rated 5 out of 5 stars (48)
5 users

ThamiZha! Solthiruthi(Tamil spellchecker)

Tamil Spell checker by Thamizha.com Team.
Its creators include Ve. Elanjelian, S. Muguntharaj, Radhakrishnan, Vijay, A. Suji, Malathi Selvaraj, Sri Ramadoss, Yagna Kalyanaraman, Lavanya Sundararajan, Pranava Swaroop and Siddarth Vengatesan.

Rated 4 out of 5 stars (9)
32 users

Advanced Unread Folders Requires Restart

Adds a folder view showing unread folders, including their hierarchy. This is helpful if you have a lot of folders to make sure you don't miss an email, or if you are not happy with the existing unread folders view.

Rated 3 out of 5 stars (19)
27 users

Kamus Pengecek Ejaan Bahasa Indonesia

Spell checker dictionaries for Bahasa Indonesia

Rated 4 out of 5 stars (16)
472 users

Profile Folder Button

Adds profile folder/directory button.

Rated 4 out of 5 stars (3)
7 users

Reply As Original Recipient Requires Restart

Reply with the From: field set to the To: field from the original email.

Rated 4 out of 5 stars (8)
28 users

Addons Recent Updates Requires Restart

Show more addons recent updates

Rated 5 out of 5 stars (11)
8 users