Message Composition
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Send Later
True "Send Later" functionality to schedule the time for sending an email.
81,787 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.
7,685 users -
Grammar Checker
Checks grammar using LanguageTool.
6,879 users
Most Popular See all »
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81,787 users
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66,931 users
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66,082 users
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27,116 users
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Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!25,217 users -
23,691 users
Top Rated See all »
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302 users
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7,685 users
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81,787 users
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23,691 users
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5,789 users
Recently Added See all »
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190 users
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66 users
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1,389 users
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10 users
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76 users
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It prevents you accidentally sending an email to a large number of recipients without hiding their addresses from each other by using BCC.274 users
See all 115 extensions in Message Composition »
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