How many times have you cursed Outlook for opening up when you click on an e-mail address linked on a website? In fact, I began to wonder if those mailto links were of any use if someone doesn’t use an e-mail client like Outlook or Thunderbird??

But the problem is solved now! Clicking on those mailto’s will open up your Gmail with the intended address in the To field in your Firefox 3.

Here is the step-by-step guide of how to do it:

1) Enter about:config in the address bar and hit the enter key. Scroll down to find gecko.handlerService.allowRegisterFromDifferentHost and double click on it to set it to true.

2) Enter the following in your address bar:

javascript:navigator.registerProtocolHandler(‘mailto’,'https://mail.google.com/mail/?extsrc=mailto&url=%s’,'Gmail’);

You will now be prompted to add Gmail as an application to mailto links, which you should add by clicking the button.

3) Now go to Tools->Options->Applications. Scroll down to find mailto and using the dropdown list select Use Gmail and hit OK.

4) That’s it, now repeat step 1 to set gecko.handlerService.allowRegisterFromDifferentHost back to false.