Add-ons
Message Composition
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*cloud - FileLink for Nextcloud OpenCloud ownCloud
Upload large attachments to your Cloud and send the link by email
34,168 users -
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.
3,514 users
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.109,494 users -
Check your emails for spelling and grammar issues71,219 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft66,753 users -
Switch the signature on/off or choose a new one from your predefined set.48,270 users -
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).47,320 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.)45,632 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。370 users -
Macro Template is to replace mail templates with macros for date formatting.531 users
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Default "Reply" functionality pays attention to "Reply-To" in original email48 users
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Create and Save or Send Multiple Individual and Personalized Messages from a Draft66,753 users
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Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).37,091 users -
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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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 telemetry29 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.8 users -
A Thunderbird extension that integrates AI assistance directly into the compose window, letting users draft replies, fix grammar, translate text, and adjust tone without leaving the email client.5 users -
Paste Markdown (GitHub Flavored) into a Thunderbird compose window and see it rendered as formatted rich text instantly. Also includes a toolbar button to render/un-render the whole draft.24 users
See all 330 extensions in Message Composition »
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