This really is a gem among all the trash.

This great little extension was buried under a pile of trash called "Mozilla's Search Engine." It's a snappy replacement for Firefox's impotent, unreadable "Find on Page" function, which has frustrated me for the last time. My only suggestion is that the "Search" button be moved further away from the "Next" and "Previous" buttons, as I've accidentally rebooted my wordsearch a number of times. Tiny, light, and customizable. Great job.