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DKIM Verifier Featured

Verifies the DKIM-Signature of an e-mail.

Rated 4 out of 5 stars (55)
26,615 users

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Signature Switch

Switch the signature on/off or choose a new one from your predefined set.

Rated 4 out of 5 stars (311)
51,654 users

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SmartTemplates Featured

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.

Rated 4 out of 5 stars (83)
3,560 users

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Signature sync for Gmail

This extension allows you to automatically use your signature from Gmail accounts in Thunderbird. No longer need to maintain two separated signatures!

Rated 4 out of 5 stars (9)
1,200 users

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Thunder Sign Editor

Thunder Sign Editor ✍️
Visual signature editor for Thunderbird (WYSIWYG)

Thunder Sign Editor is a lightweight Thunderbird extension that lets you visually design, copy, and apply email signatures to any of your Thunderbird identities.

Rated 4 out of 5 stars (3)
247 users

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Advanced Composer

Creates message templates with variable support, quote header in Ms Outlook style, signatures, custom attachment info for cloud files, and more.

Rated 4 out of 5 stars (11)
507 users

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DynSign

DynSign is a Thunderbird extension that dynamically inserts a signature into your emails. It allows you to keep your email signature up to date without having to manually edit it in Thunderbird.

https://github.com/Vozodo/DynSign

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53 users

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