New with the Firefox 3.0.2 release, Gmail has been bundled as a web mail provider. Gmail can automatically handle (in lieu of Thunderbird or Outlook) Send Link… (via file or context menu) and ‘Mailto’ links with a few short steps:
- Open the Options window (or Preferences on Linux and Mac),
- Click the Applications tab
- Type ‘mailto’ in the Search Field
- In the Action column Select Use Gmail.
- Click OK (no restart needed)
Thanks for the tip Claus.
Source: Mozilla Links