A window disappeared after I pressed a key in Openbox, how do I bring it back?

I had Firefox running, then (possibly) as a result of a key combination I don't recall, it quickly vanished from screen and Task Bar/Window List. From my [other question](https://unix.stackexchange.com/questions/96797/what-does-the-interruptible-sleep-state-indicate) it was established the issue is likely that I made the window disappear, though it isn't on either of the two user-displayable desktops. I am running the Openbox Window Manager on Parted Magic. I don't have tools such as wmctrl or xdotool installed/available, which I understand have the ability to bring the window back to the current desktop, unhide, unshade, or maximize it. Does anyone know if Openbox exposes this fuctionality natively, or any other way to perform the same with Openbox built-in tools / ones that can be added/used with this distro?