Add-ons
Message Composition
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Send Later
True "Send Later" functionality to schedule the time for sending an email.
77,664 users -
Signature Switch
Switch the signature on/off or choose a new one from your predefined set.
65,278 users -
Send Later Button
A simple button to invoke the (already existing) send later functions.
12,874 users
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.77,664 users -
Switch the signature on/off or choose a new one from your predefined set.65,278 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft64,201 users -
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird30,086 users -
Check the message contents and addresses before you send the message...19,371 users -
Confirm mail address and attachments based on flexible rules.15,886 users
Top Rated See all »
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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.10,074 users -
True "Send Later" functionality to schedule the time for sending an email.77,664 users
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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。1,935 users -
Default "Reply" functionality pays attention to "Reply-To" in original email413 users
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As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.58 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft64,201 users
Recently Added See all »
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Upload large attachments to your Cloud and send the link by email915 users -
Uploads your large attachments to your OwnCloud or NextCloud server and instead inserts a public link into your email.492 users -
Toggle word wrapping and <PRE> element wrapping in the message composition and HTML display windows, respectively. Based on original version by Kaspar Brand.452 users
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It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->“Add-on Preferences -> changeQuote.598 users -
Uploads your large attachments to your Box instead of sending them by email.4,298 users -
Select sender mail address based on the recipient and reply with the same address9 users
See all 120 extensions in Message Composition »
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