Basicly, it should not, because it's standard system level hotkeys.
But there are different OSes with different hotkeyes, e.g.Ctrl-Alt-BS ...
The best solution is to allow user to select allowed (or denied) hotkeys manually, but maybe it's hard to implement.
Browser must respond to basic browser level hotkeys (ctrl+t, ctrl+n, ctrl+w, ctrl+l).
(Btw maybe it's good to map ctrl+e to restore last closed tab.)
And browser (not flash) in ideal must respond to common system level hotkeys normally.
Basicly, it should not, because it's standard system level hotkeys.
But there are different OSes with different hotkeyes, e.g.Ctrl-Alt-BS ...
The best solution is to allow user to select allowed (or denied) hotkeys manually, but maybe it's hard to implement.
Browser must respond to basic browser level hotkeys (ctrl+t, ctrl+n, ctrl+w, ctrl+l).
(Btw maybe it's good to map ctrl+e to restore last closed tab.)
And browser (not flash) in ideal must respond to common system level hotkeys normally.