Add-ons
Message Composition
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SmartTemplates
SmartTemplates offers an easy and powerful way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every mail identity, Stationery files can now be imported and used directly.
8,661 users -
*cloud - FileLink for Nextcloud and ownCloud
Upload large attachments to your Cloud and send the link by email
13,655 users
Most Popular See all »
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Create and Save or Send Multiple Individual and Personalized Messages from a Draft70,453 users -
True "Send Later" functionality to schedule the time for sending an email.66,787 users -
Switch the signature on/off or choose a new one from your predefined set.42,117 users -
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird36,801 users -
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.26,568 users
Top Rated See all »
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Upload large attachments to your Cloud and send the link by email13,655 users -
Highlights selected text when composing emails. Default colour is yellow - other colours are available via Options.
(Works only during writing an e-mail, i.e. only in the compose window.)4,140 users -
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.17,362 users -
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。1,588 users -
Macro Template is to replace mail templates with macros for date formatting.173 users
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Quickly choose one of the previously selected colors for a message text716 users
Recently Added See all »
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Updates the local OpenPGP Alias file from a server to simplify encryption for mailing lists, or email aliases in an organizational environment.
Please make sure config parameter "mail.openpgp.alias_rules_file" is set to "openpgp_alias.json".25 users -
Traffic light protocol extension for Thunderbird, messages are customizable in the option page.3 users -
Adds a Address Box button, toggles the Address Box in the Composer window14 users -
When reply to all is used, move original To: recipients to Cc:
Also forces "Cc:" to be displayed on all new messages.
GitHub Repo: https://github.com/cyb3rmonk/reply-all-auto-cc76 users -
Insert standard text blocks in an easy way in composer. No mouse: done by keyboard.
Type br<ctrl-d>, it converts to best regards. #c is cursor position.
Make a list of shortcut-replacements in the addon settings. Replacements may be multiline.79 users -
A revival of the popular Markdown-Here addon for Thunderbird 78 and beyond.
Markdown Here Revival is a Thunderbird extension that lets you write emails in Markdown and render them as HTML before sending.577 users
See all 144 extensions in Message Composition »
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