Blank Canvas Gmail Signatures is a Firefox extension, it can insert multiple HTML signatures into your Gmail emails based on which address you are sending from. Supports up to four signatures for each address you have set up. Works for Compose Message and Reply / Forward.

Blank Canvas Gmail Signatures Features:
1. Use rich HTML signatures with images, styles, etc.
2. Works for Compose Mail, Reply, and Forward
3. Support for single or multiple email addresses
4. Create a different signature for each email address you use in your Gmail account
5. Supports up to four signatures per address
6. Real-time signature preview while editing signature HTML
7. Signature automatically inserted into message above (or optionally below) quoted text
8. Support for special characters
9. Easy setup and configuration interface

Requirements:
* Firefox

The license of this software is Free, you can free download and free use this browser plug-ins software.