The following are what I see as absolutely essential key-combinations which are still missing. I've reported these in the past. Personally, I'm unable to use a browser that doesn't incorporate these as I use them as frequently as mouse clicks.

Reproduce: v0.9.6 on Windows

Key combinations:

Ctrl-Enter in URL bar to complete website address with ".com"

Ctrl-Tab / Ctrl-Shift-Tab

Expected behavior is scrolling to the next/previous open tab.

Ctrl-1 through Ctrl-0

Expected behavior is to open the 1st (leftmost) tab with Ctrl-1, the 2nd through 9th tabs with Ctrl-2 through Ctrl-9, and the rightmost tab with Ctrl-0.

Ctrl-MouseClick on hyperlink (or alternatively right-click + "Open in New Tab")

Expected behavior is to open a new tab TO THE RIGHT of the active tab, not as the rightmost tab.

Ctrl-Shift-T

Expected behavior is to re-open a recently closed tab (which was closed via Ctrl-W or mouse click). If MASQ security does not allow to gain access to a closed tab, maybe it's worth considering to add a 1-minute timer, for example, in order to allow for re-opening of a recently closed tab within that time window.