Message Composition

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ReplyWithHeader Requires Restart

Outlook style headers and few goodies for Thunderbird & Postbox.

Rated 4 out of 5 stars (8)
92 weekly downloads

Send Later Button Requires Restart

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

Rated 5 out of 5 stars (1)
87 weekly downloads

Reply to Multiple Messages

Add menu commands for replying to multiple messages at the same time.

Rated 5 out of 5 stars (1)
86 weekly downloads

Email signature for Thunderbird - WiseStamp Requires Restart

Switch Thunderbird email signatures. Supports Gmail, Yahoo, AOL & Outlook webmails. Youtube, Facebook, Twitter icons & more

Rated 2 out of 5 stars (5)
77 weekly downloads

Attach from Clipboard Requires Restart

Create file attachments directly from the system clipboard.

Rated 4 out of 5 stars (3)
67 weekly downloads

Flex Confirm Mail Requires Restart

Confirm mail address and attachments based on flexible rules.

Rated 3 out of 5 stars (2)
55 weekly downloads

Toggle Word Wrap Requires Restart

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

Rated 4 out of 5 stars (43)
54 weekly downloads

Extra Format Buttons Requires Restart

Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.

Rated 4 out of 5 stars (11)
53 weekly downloads

Custom Address Sidebar Requires Restart

Allow you to help address sidebar more useful.

Rated 4 out of 5 stars (10)
53 weekly downloads

One-by-One Forward Requires Restart

Highlight multiple emails, right-click, then select "One-by-One Forward". This extension will allow you to forward the selected emails, one-by-one, to the recipients you specify using your choice of attachment handling.

Not yet rated
52 weekly downloads

MultiTemplateLoader Requires Restart

Manages & applies multiple HTML templates when creating/replying messages.

Templates may be either local files or online links (http:// or ftp://). Up to 9 templates can be defined and easily switched, also using shortcut keys.

Not yet rated
51 weekly downloads

DL for Thunderbird Requires Restart

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

Rated 5 out of 5 stars (4)
47 weekly downloads

hubiC for Filelink Requires Restart

Add hubiC support to Thunderbird's Filelink feature.

Rated 4 out of 5 stars (14)
37 weekly downloads

Reply As Original Recipient Requires Restart

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

Rated 5 out of 5 stars (3)
30 weekly downloads

Color Text Compose Buttons Requires Restart

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 (20)
29 weekly downloads

BorderColors GT Requires Restart

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)
28 weekly downloads

Copy Message ID Requires Restart

Adds a button to the message view toolbar to copy the message ID to the clipboard. This is useful when sending email replies via the command line.

Not yet rated
27 weekly downloads

EnForward Requires Restart

Save your email into Evernote by forwarding it to Evernote email address.
Before you use it, you need to specify your Evernote email address (see the screenshot).

This function can be invoked by "Forward to Evernote" in the context menu.

Rated 4 out of 5 stars (6)
25 weekly downloads

SMTP Switch Reborn Requires Restart

SMTP Chooser.

Not yet rated
23 weekly downloads

Reply To All Reminder Requires Restart

Asks for confirmation when "Reply" instead of "Reply to All" is pressed on an email with multiple recipients.

Not yet rated
21 weekly downloads