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.
3,661 users -
*cloud - FileLink for Nextcloud and ownCloud
Upload large attachments to your Cloud and send the link by email
36,379 users
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.113,551 users -
Check your emails for spelling and grammar issues71,574 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft70,468 users -
Switch the signature on/off or choose a new one from your predefined set.50,320 users -
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).49,852 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.)48,003 users
Top Rated See all »
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Quickly choose one of the previously selected colors for a message text1,535 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。425 users -
Macro Template is to replace mail templates with macros for date formatting.562 users
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Default "Reply" functionality pays attention to "Reply-To" in original email54 users
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Create and Save or Send Multiple Individual and Personalized Messages from a Draft70,468 users
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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.84 users
Recently Added See all »
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Detección en tiempo real de spam y phishing en Zimbra. Bloquea enlaces peligrosos con Safe Browsing, PhishTank y URLhaus.0 users -
Rewrite Thunderbird compose drafts with LLM providers while preserving inline media.0 users -
Saves a copy of sent messages in the current folder or any selectable folder instead of the default Sent folder.
This add-on is the successor of 'Copy Sent to Current', which is no longer supported8 users -
Unofficial Microsoft Mail add-on for Thunderbird, it adds a button in Spaces that opens a Microsoft Mail tab in Thunderbird.2 users -
Adds an extra Send button to the compose window that automatically copies the message to a configured list of CC and/or BCC addresses (e.g. a CRM logging address, a team archive mailbox, or a manager).1 user
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Converts recipients using the identity reply-to address on send to the format required by addy.io. If the reply-to field is empty, does nothing. If populated, transforms recipient address(es) (i.e. TOs, CCs, and BCCs) based on the reply-to address.1 user
See all 324 extensions in Message Composition »
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