User blog comment:Sarah Manley/New Editor Scheduled for Sitewide Release/@comment-4085927-20110907162047/@comment-126761-20110907162919

We removed unlink as a button as it was very rarely used (leaving the context menu option). What wiki are you trying this on, so I can give it a test myself?

As a Firefox user myself, I really hope they update their find bar design soon, it's really not a good design. Thanks for pointing out that issue - we want to add some spacing to the end of the source mode editor as it is, and that's another good reason to do so.