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How to add an email signature to Mozilla Thunderbird

This post is also available in: Português

The Mozilla Thunderbird is an intelligent choice of an email client, it is a software designed to ease the management of day-to-day emails. It’s a great alternative to Microsoft Outlook. If you are using it as your main email client, you’ll want to have a beautiful signature in your messages, and, for this, we have a step-by-step showing you how to do it!

How to add an email signature to Thunderbird

A little different from all the other ways of pasting an email signature, in Thunderbird, you’ll need to paste the HTML code of the signature, which is not that hard. Lets go through the step-by-step.

You can also watch a complete video tutorial at the end of this article.

With Thunderbird open, go to the Settings of your email account, as you can see below:

Thunderbird email settings

With the settings tab open, go to Signature Text, this is where you’ll paste the HTML code of your email signature, not its visual content.

Thunderbird email signature area

Let’s go through this process by watching a video, to understand it better.

Before that, don’t forget to select the option Use HTML, as you can see in the image above. After that, it’s all done! All you need to do now is send a message and test it out!

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Video tutorial

As promised, here’s a video going through all the steps listed above.

Viewing dashed borders while composing an email

You can note while watching this video that, while writing a new message with Thunderbird, a dashed border is seen around the email signature. This is a definitive configuration of the email client, and we are not able to change it.

The good news is that these borders are not shown to your client or whoever is receiving your email!


All done. If you have any questions or difficulties while creating an email signature in Thunderbird, please get in touch with our support team.

Updated on 21 de October de 2019

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