User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:37.0) Gecko/20100101 Firefox/37.0 Build ID: 20150420225811 Steps to reproduce: 1. Ctrl+K to get to the search bar 2. Type some text 3. Press return Actual results: Depends, sometimes an unintended search provider is used, sometimes the search settings dialog is opened. This depends on where the mouse cursor is. I think what happens is if the mouse happens to be hovering one of those elements, return will activate it like a mouse click would. Expected results: A search should be performed with the default search provider. I'm not always aware of where the cursor is and this can happen with only

Hmm, I forgot to finish that last sentence... "...and this can happen with only keyboard interactions, so the mouse cursor location having an effect seems counterintuitive"