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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 (81)
4,127 users

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Allow HTML Temp

Allows to have HTML temporarily enabled (and displayed) in the currently selected message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (according to your settings).

Rated 4 out of 5 stars (89)
11,027 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.

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8 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 (10)
518 users

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