Bug 826991 - Store download state and end time in an annotation.
r=mak a=gavin
Bug 825852 - Add UI migration to put the Downloads button into the navigation bar.
r=mak a=gavin
Bug 830242 - Double clicking a folder in the right side pane opens first item into the current tab. And sent the 'library' into the background.
r=mak a=gavin
Bug 830842 - Clear Downloads button should appear only for Downloads View.
r=mak a=gavin