Only trap keypress when a character is found. Fixes selection behavior in FF.
Only trap keypress when a character is found. Fixes selection behavior in FF.

basecamp/trix,urossmolnik/trix,GabiGrin/trix,urossmolnik/trix,ChenMichael/trix,basecamp/trix,GabiGrin/trix,urossmolnik/trix,GabiGrin/trix,basecamp/trix,ChenMichael/trix,basecamp/trix,ChenMichael/trix