The Mozilla Thunderbird email client allows you to create and use a personal signature, which will appear at the end of outgoing email messages.

 
Before You Begin

A signature appears at the bottom of email messages you send. It typically contains elements like your name, phone number, and department or organization. You might also want to include a fax number, web address, or additional information.
Here is an example of an email signature:

Reggie Redbird
(309) 438-xxxx
www.IllinoisState.edu

Create a Signature in Thunderbird

To create a signature within Thunderbird, do the following:

1. Open Thunderbird.
2. Click the button with the three horizontal bars in the upper-right of the Thunderbird pane to open the Thunderbird Menu.
3. Select Account Settings.
   3a.  If Thunderbird is configured with more than one account, choose the account on the left to which you would like to add the signature file.
4. Type your signature in the field labeled, Signature Text:.
   
   
   Your signature will be added to emails you send using Thunderbird.
    

Use a Signature File in Thunderbird

To create a signature file for use with Thunderbird, follow the directions below.

1. Open a text editor such as Notepad or TextEdit.
   1a.  Windows: Click Start →  All Programs →  Accessories →  Notepad.
   1b.  MacOS: Double-click Hard Drive →  Applications →  TextEdit.
2. Type your signature.
3. When you are done, save the document to a location of your choosing and close your text editor.
4. Open Thunderbird.
5. Click the button with the three horizontal bars in the upper-right of the Thunderbird pane to open the Thunderbird Menu.
6. Select Account Settings.
   6a.  If Thunderbird is configured with more than one account, choose the account on the left to which you would like to add the signature file.
7. Put a check mark in the box labeled Attach this signature from a file...
8. Click Choose
9. Browse to the signature file you created.
10. Click Open
    
    
    Your signature will be added to emails you send using Thunderbird.