Add-ons
Message Composition
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Grammar Checker
Checks grammar using LanguageTool.
11,162 users -
ThunderHTMLedit
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.
10,640 users -
Send Later
True "Send Later" functionality to schedule the time for sending an email.
75,874 users
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.75,874 users -
Switch the signature on/off or choose a new one from your predefined set.62,683 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft61,672 users -
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird31,236 users -
Check the message contents and addresses before you send the message...18,113 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.10,640 users -
True "Send Later" functionality to schedule the time for sending an email.75,874 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。1,727 users -
Default "Reply" functionality pays attention to "Reply-To" in original email411 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.63 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft61,672 users
Recently Added See all »
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Check that number of non-BCC recipients does not exceed a parameter.2 users
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Upload large attachments to your Cloud and send the link by email1,870 users -
Uploads your large attachments to your OwnCloud or NextCloud server and instead inserts a public link into your email.630 users
See all 121 extensions in Message Composition »
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