Can we capture the same browser closing event without using “onunload”

Actually using the window.close , we can control whether browser is closed or not, but it works only for pop-ups created by the browser.

So, are there any ways to listen to the closing event of the browser without using onunload ? Because we don't want things to be executed when back , refresh or forward actions occur.

Please also reply if you know specifics regarding Firefox.

Thanks in advance!