You may laugh now that I didn't know that already.
Anyway, since I know at least two more persons who didn't know that either there's bound to be others out there that don't know either:
- Go to http://bugs.freedesktop.org
- Click on the google logo in the searchbar
- Select "Add FreeDesktop Bugzilla"
- Go to Manage Search Engines
- Enter a keyword (e.g. "fdo") for the new engine.
Same works for a number of bugzilla instances. Useful.