Top-Rated Extensions

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Replaceholder

Replace placeholders with date and time as you type.
入力画面の件名、本文内の各プレースホルダを日時や曜日等の文字列に置換します。

Rated 2 out of 5 stars (1)

11 users

Year View Requires Restart

This is an example extension that adds a simple year view to Sunbird/Lightning.

Note that freebusy information is only provided if all calendars are cached. See long description for more info. Also, Calendar 1.0pre with bug 489590 fixed is required.

Rated 2 out of 5 stars (5)

0 users

Purge Events Requires Restart

Purge events from Sunbird and Lightning calendars

Rated 2 out of 5 stars (7)

0 users

Zoiper Thunderbird Plugin Requires Restart

It allows you to make calls via Zoiper from Mozilla Thunderbird.

Rated 2 out of 5 stars (3)

25 users

Boomerang Requires Restart

Boomerang E-Mail is an Add-on for the Thunderbird E-Mail-Client and is based on the Boomerang e-Mail algorithm (patent pending).

It provides functionality to send a certain e-mail (including attachments) to several recipients one after the other and...

Rated 2 out of 5 stars (6)

0 users

Mark Read On Reply Requires Restart

A simple extension to mark messages read after you click a reply menu or button (or Ctrl+R)

Rated 2 out of 5 stars (2)

1 user

Tabbed Mail Preferences Requires Restart

Enhances control over some aspects of tabbed mail browsing.

Rated 2 out of 5 stars (2)

1 user

PassToScript extension Requires Restart

Extension to pass e-mail in eml (raw) format directly to the script specified

Rated 2 out of 5 stars (2)

0 users

Download for Linux

Nightly Tester Tools Lite Requires Restart

This is a cut down version of Nightly Tester Tools by Mossop, which is 77.6 KB. I've only included the "copy build id" and "build id in titlebar"...

Rated 2 out of 5 stars (8)

0 users

Test Pilot for Thunderbird

Add-on has now been discontinued, see below.

Rated 1 out of 5 stars (15)

381 users

Only Minor Update Requires Restart

Applies only minor updates of the application.

Rated 2 out of 5 stars (1)

1 user

FlatStyle for Thunderbird Requires Restart

This gives you a style similar to MS Office XP in your Thunderbird menus and toolbars, and Calendar as well if you have that installed. It also changes the category-selector in the options window to use your system colors, instead of always being...

Rated 2 out of 5 stars (1)

0 users

DOM Inspector - Mac OS X Requires Restart

Inspect the DOM of HTML, XUL, and XML pages, including the mail...

Rated 2 out of 5 stars (1)

0 users

Spoof Detector Requires Restart

Extension for Email Spoofing Detection

Rated 2 out of 5 stars (1)

0 users

Cairo-Dock unread messages Requires Restart

Displays the number of unread messages in all inboxes on your dock.

Rated 2 out of 5 stars (1)

0 users

Download for Linux

TaskviewFlexLayout

Thank you to like this add-on up to now.
TaskviewFlexLayout ends in Thunderbird version 78s.

Now on, I start development of independent window entity programs.

August 01st 2021.

Sungho.

Rated 1 out of 5 stars (2)

16 users

PasteMarkdown&XHTMLForm

Thank you to like this add-on up to now.
PasteMarkdown&XHTMLForm ends in Thunderbird version 78s.

Now on, I start development of independent window entity programs.

August 01st 2021.

Sungho.

Rated 1 out of 5 stars (2)

5 users

Jitsi Meet event generator

Event and link generator for Jitsi Meet service.

Rated 1 out of 5 stars (2)

199 users

Thunderbird Pedophile Reporter Requires Restart

This add-on was created to allow anyone that is contacted by a suspected pedophile or suspected predator. This will gather the header information and send it to our servers to be reviewed by an investigator.

Rated 1 out of 5 stars (3)

0 users

Zonio Freebusy for Lightning Requires Restart

Finds when are people available for a meeting or event via Zonio Freebusy service. Displays freebusy blocks instantly in Invite Attendees window while attendees are being added. Works with both local calendar storage or any calendar provider.

Rated 1 out of 5 stars (1)

0 users