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.
3,825 users -
*cloud - FileLink for Nextcloud and ownCloud
Upload large attachments to your Cloud and send the link by email
40,356 users
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.120,547 users -
Check your emails for spelling and grammar issues76,609 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft75,591 users -
Switch the signature on/off or choose a new one from your predefined set.54,595 users -
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).53,493 users -
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.50,780 users
Top Rated See all »
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Quickly choose one of the previously selected colors for a message text1,933 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。471 users -
Macro Template is to replace mail templates with macros for date formatting.567 users
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Default "Reply" functionality pays attention to "Reply-To" in original email63 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.95 users
Recently Added See all »
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L'extension améliore votre expérience de boîte de réception d'e-mails grâce au support IA (LLM).
* Résumé
* Traduction
* Explication
* Auto Tag
* Prompte personnalisé0 users -
Manage and insert customized email templates with attachments directly from the compose window.8 users -
Quill lets you integrate AI writing assistance (Ollama, OpenAI, or Claude) to help you write or respond to emails un Mozilla Thunderbird.5 users -
Claify est une extension Thunderbird qui intègre l'intelligence artificielle Claude (Anthropic) directement dans votre client email. Résumez, traduisez, corrigez et rédigez vos emails en un clic.
Fait avec ❤️ par Supersonique Studio3 users -
Highly-customizable and performant extension for @-mentions inside Thunderbird.20 users
See all 275 extensions in Message Composition »
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