Add Safari style in-site search to Firefox

No matter how disgusting Safari For Windows is, it has a lot of redeeming qualities. For example, search keywords within the site emphasize functionality. Although Firefox also has keyword highlighting, it doesn't have the background gray or text bounce effect, so it still doesn't look obvious. The good news is that Firefox extensions can do almost anything you can think of, and the Japanese XUL/Migemo extension gives Firefox a Safari-style on-site search.