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.
3,520 users -
*cloud - FileLink for Nextcloud OpenCloud ownCloud
Upload large attachments to your Cloud and send the link by email
33,533 users
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.109,543 users -
Check your emails for spelling and grammar issues70,980 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft65,432 users -
Switch the signature on/off or choose a new one from your predefined set.48,226 users -
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).47,302 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.)45,481 users
Top Rated See all »
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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。402 users -
Macro Template is to replace mail templates with macros for date formatting.561 users
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Default "Reply" functionality pays attention to "Reply-To" in original email48 users
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Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).38,353 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft65,432 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.83 users
Recently Added See all »
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Drafts your replies in the Thunderbird compose window, using the conversation, your notes and your own goals. Sorts what arrived by what needs answering. Nothing is sent unless you send it — or until you switch on automatic replies yourself.0 users -
From the compose window, send your email to many recipients one at a time, with a delay between each — or schedule it for later.0 users -
Utilisez votre instance Gokapi comme fournisseur FileLink pour les pièces jointes de Thunderbird.2 users
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Gmail-style Undo Send for Thunderbird — delay outgoing mail 5–60 seconds and cancel before it goes out .
configurable delay, undo from notification/queue, dark mode, no network, no telemetry41 users -
Respuestas predefinidas y plantillas de correo en la ventana de redacción. Inserta respuestas rápidas con un clic: pack por categorías, plantillas propias, variables y CSV.3 users
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Thunderbird's built-in reminder checks one language with a fixed list. This warns in 9 languages, lets you add your own trigger words, and only interrupts right before sending.9 users
See all 332 extensions in Message Composition »
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