I have the same problem - no effect when I right click.
In addition I recognised:
That I don't have the icon in the icon list on top (right of address/search line). This is true also for V7 tab, V7 bookmarks and V7 notes, but not for V7 stash.
Nevertheless I have all 5 in the side list.
Betriebssystem:Windows 7 64-bit (WoW64)