How do I selectivly close the only not responding window (without closing the other 3 responding windows)

Question

Presently, I have 4 windows opened, each with a bunch of tabs.
Since I restarted firefox this morning, one out these 4 windows, keeps on not displaying.
How do I selectivly close this only window (without closing the 3 others windows)

Answer 1

Here is what the manpage shows:
[ps(1)|http://developer.apple.com/documentation/Darwin/Reference/ManPages/man1/p s.1.html]
state The state is given by a sequence of letters, for example, ``RWNA''. The first letter indicates the run
state of the process:
I Marks a process that is idle (sleeping for longer than about 20 seconds).
R Marks a runnable process.
S Marks a process that is sleeping for less than about 20 seconds.
T Marks a stopped process.
U Marks a process in uninterruptible wait.
Z Marks a dead process (a ``zombie'').
Additional characters after these, if any, indicate additional state information:
+ The process is in the foreground process group of its control terminal.
< The process has raised CPU scheduling priority.
<div class="jive-quote"> The process has specified a soft limit on memory requirements and is currently exceeding that
limit; such a process is (necessarily) not swapped.
A the process has asked for random page replacement (VA_ANOM, from vadvise(2), for example,
lisp(1) in a garbage collect).
E The process is trying to exit.
L The process has pages locked in core (for example, for raw I/O).
N The process has reduced CPU scheduling priority (see setpriority(2)).
S The process has asked for FIFO page replacement (VA_SEQL, from vadvise(2), for example, a large
image processing program using virtual memory to sequentially address voluminous data).
s The process is a session leader.
V The process is suspended during a vfork.
W The process is swapped out.
X The process is being traced or debugged.