Hacking Firefox 3 to Use Gmail As Default Email Client

Here’s a trick which shows you how you to tell Firefox 3 to launch Gmail to send your emails when a mailto: link is clicked.

1. Open Gmail in Firefox.

2. In the tab where Gmail is loaded, copy and paste the following snippet of JavaScript into your address bar:

javascript:window.navigator.registerProtocolHandler(”mailto”,”https://mail.google.com/mail/?extsrc=mailto&url=%s”,”GMail”)

3. If you are a Google Apps user, use this code instead, but replace example.com with your domain name:

javascript:window.navigator.registerProtocolHandler(”mailto”,”https://mail.google.com/a/example.com/mail/?extsrc=mailto&url=%s”,”GMail”)

4. Firefox 3 will ask permission to add Gmail as default mailto handler. Click the Add Application button, as shown.

So the next time you clicked on a mailto: link in firefox 3, you will be presented with a screen similar to below. Choose Gmail, and select “Remember my choice for mailto links” to set the preference permanently.

via lifehacker