Add Colorful HTML Signatures In Your Gmail

Blank Canvas Gmail Signatures is a Firefox add-on that automatically inserts HTML signatures into your Gmail messages letting you select which signature you want to use, thanks to a tag system, from four presets that you can freely edit.
All you need to use is a minimal preparation with HTML, and if you don’t have this, Blank Canvas Gmail Signatures provides you a simple and basic introduction to HTML coding language
Let me show you how to use it:

• First of all you need to be registered to Firefox Add-ons. Once you are registered, just install the add-on and restart Firefox.
• Now the only thing to do is to open Gmail and compose a new message.
• Just below the “send” button you will see three other buttons. Good, this is the add-on!!
  
• The first button allows you to choose which signature set to include in the message. You can create four signatures, so that you can have a signature for work, one for your friends and use the others as best as you think.
  
• The second button allows you to create a new signature, or to modify an existing one.
  
• The third and last button shows you a list of options, where you can rename the four tags that match the different signatures for you to easily recognize them.
  
• When you click the button to start making a new signature you will see two boxes over the email message field: the first box is where you have to write your signature in HTML language, and the second box is where you can see the real-time preview of what your creation will look like.
  

Thanks to Blank Canvas Gmail Signatures you can now have a very cool HTML Signature for your Gmail account. And it’s very simple to use, so everyone can use html signature in his e-mal.
For more information, or to discuss this add-on, please see the forums here
The extension is obviously free to download and install.
Link: https://addons.mozilla.org/en-US/firefox/addon/7757