Created attachment 653465 [details] Screenshot STR: 1) Open awesomebar with dropdown arrow. 2) Move mouse to 3rd item. 3) Move mouse to the right while staying over the 3rd item, click on page content. 4) Open awesomebar with dropdown arrow. 5) Move to 1st item. 6) Notice that 2 items are highlighted in blue I noticed this one the same nightly as bug 782980 so I'm tentatively thinking it's related to Bug 770000.
Possibly related to bug 783449.