Tategaki allows vertical writing-mode on mail compose window.

Még nem osztályozott
3 felhasználó
May 26, 2016 frissítve


Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.

Még nem osztályozott
52 felhasználó
May 17, 2016 frissítve


Save frequently-entered text for pasting later.

Rated 4 out of 5 stars (180)
44 849 felhasználó
May 13, 2016 frissítve


Category manager for CardDav contacts, also allows to send an email to all members of a category (categories can be used as contact groups).

Rated 5 out of 5 stars (9)
2 425 felhasználó
May 2, 2016 frissítve

Color Text Compose Buttons

Adds Text Color Buttons in Compose Toolbar and More: Pixel FontSize, Strikethough, Sub & Superscript, Lower & UpperCase. Also provide Tools: Insert iframe, Launch MathType, Maths & Greek Symbols, Load Template Variables and Duplicate Compose Window.

Rated 4 out of 5 stars (19)
2 021 felhasználó
April 30, 2016 frissítve

DL for Thunderbird

Allows to convert large attachments to links automatically without 3rd party providers.

Rated 5 out of 5 stars (3)
1 667 felhasználó
April 30, 2016 frissítve

Send Later Button

A simple button to invoke the (already existing) send later functions.

Még nem osztályozott
500 felhasználó
April 29, 2016 frissítve

Single Domain

Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.

Rated 5 out of 5 stars (1)
155 felhasználó
April 26, 2016 frissítve

BorderColors GT

How many time you sent an email from your wrong email address?
This add-ons allows you assign a different color to the compose window border for each of your email addresses. So you can immediately view from what account are you writing.

Rated 4 out of 5 stars (8)
4 190 felhasználó
April 25, 2016 frissítve


SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (49)
20 040 felhasználó
April 20, 2016 frissítve

Mail Merge Kiemelt

Mass Mail and Personal Mail

Rated 5 out of 5 stars (143)
56 009 felhasználó
April 19, 2016 frissítve


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

Rated 5 out of 5 stars (12)
16 152 felhasználó
April 18, 2016 frissítve

Emoji Menu

Adds the ability to easily insert emojis into your composed messages in Thunderbird.

Rated 5 out of 5 stars (4)
3 285 felhasználó
April 13, 2016 frissítve

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (47)
64 362 felhasználó
April 12, 2016 frissítve

Ethical signature

Add a button to the email composition toolbar, which lets you insert an ethical signature.

Még nem osztályozott
35 felhasználó
April 5, 2016 frissítve

Toggle Word Wrap

Toggle word wrapping and PRE element wrapping in the message composition and HTML display windows, respectively.

Rated 4 out of 5 stars (38)
6 871 felhasználó
March 22, 2016 frissítve

Colored Recipient Type

Customize background-color of the recipient address fields for each recipient types of To:, Cc:, Bcc:.Customize background-color of the recipient address fields for each recipient types of To:, Cc:, Bcc:.

Még nem osztályozott
161 felhasználó
March 21, 2016 frissítve


(Re)submit multiple messages to a predefined recipient(s)

Még nem osztályozott
39 felhasználó
March 18, 2016 frissítve

X-Unsent support

Adds support for the X-Unsent header.

Rated 3 out of 5 stars (2)
96 felhasználó
March 16, 2016 frissítve


This extension makes it very easy to generate and attach stamps to outgoing mail. It also automatically detects and verifies stamps on incoming emails. The MBound algorithm requires a 16MB fixed table to work, HashCash is more CPU intense.

Rated 5 out of 5 stars (3)
32 felhasználó
March 7, 2016 frissítve