Tested on 2013-07-18 using latest nightly. While testing story in bug 831909 I noticed that if you accidentally dismiss the soft keyboard while selecting text in the navigation app bar, you can end up with a floating monocle in the page. Steps: 1. Open Firefox Metro and visit any site 2. Swipe up to bring up the navigation app bar 3. Touch the empty space next to the URL - a monocle should appear. * 4. Accidentally dismiss the soft keyboard by double tapping the empty space in the URL field. *This doesn't reproduce all the time, but it will happen eventually. Expected: The soft keyboard disappears and the navigation bar is moved to the bottom, and the monocle is still showing at the end of the URL. Actual: There's a floating monocle in the page. Sometimes, depending on what kind of selection you had in the URL, you can get two floating monocles.

Crap, I found the bug this dupes to after submitting it.