Mayur Jobanputra

So a client asked me tonight about the HTML signature.  Hehe.. its a bit of browser trickery really and it only works in Firefox.

1. Download, install and only use Firefox, an alternative to Internet Explorer. www.firefox.com 
2. Go here https://addons.mozilla.org/en-US/firefox/addon/4866 and install. After installing the Firefox-only Better Gmail extension, you’ll discover a handful of configurable options - one of which is the "Allow HTML in Signature" option under Gmail > Settings. Once the option is selected, you now have free reign as far as HTML signatures are concerned.
3. Copy and paste the HTML below into Notepad. Edit the name, phone number, and URL below to your needs. For the ===IMG=== text below, insert the full URL of an image online (preferably at your own blog or web site). You may need to get your web designer to assist you with a URL at this point.  If you don’t care for an image, remove that line entirely.

<table style="font-size:11px;color:#555;border-collapse:collapse;">
<tr>
<td><img src="===IMG===" /></td>
<td>Your Name //</td>
<td>123-456-7890 (mobile) //</td>
<td><a href=http://www.yoururl.com>www.yoururl.com</a></td>
</tr>
</table>

4. Paste the edited HTML signature in Gmail settings > Signature
5. Add salt and pepper to taste. Enjoy while its hot!

Thanks to the following for this tip:

http://risingline.com/blog/2008/01/adding-html-email-signatures-to-gmail.html
http://5thirtyone.com/archives/821