BitBox - How to close Firefox windows

[delaflota]

Hi,
I have installed the newest BitBox (4.6.0-r327) on my Win10 Pro PC with the Firefox 52.2.1 (32 Bit)).
Everything works fine but allways it opens automatically new ad-windows which I can change in the bottom taskbar of the BitBox window to. These windows are not firefox tabs.
My question is now how can I close them?
There's no context (right mouse click) and No "X" at the right upper side.
So I actually can only close the whole Bitbox instead of any firefox window.

Is there any possibility to close firefox windows?

Thanks

 

[Neemobeer]

If you hover your mouse over a tab does an X appear?

 

[delaflota]

Thanks for answering!

No unfortunately not.
Everything in these windows is locked, you can't even change the URL...

 

[Neemobeer]

After skimming the admin manual. I think that's kind of the point of the concept that it's supposed to be locked down. Doesn't look there is an option to close a tab. You can only browse sites that BitBox is configured for and nothing else.

 

[delaflota]

Sorry, I don't think so. I can close tabs in a FF window but there are additional windows, I can't close them.
Look, I'm going to the site Football | UsaGoals TV to watch football live streams.
Then in that site there's some links to ads with two "x" on it in order to close them.
One of these "x" is a fake one and this opens one or more new windows.
In former times it just opened new tabs in the same window and I could close them.
I'm sending you two screen shots.

The "X" in the right upper corner closes the BitBox window.
I can imagine these locked windows are designed like this (not being editable) by the html programmers.
But the missing "X" for the firefox window might be a BitBox design,
which proves a drawback in such situations.
But there might be a possibility to close FF windows too.