Javascript can only close windows that were opened using Javascript in FF without modifying the config. To change your config to allow this:
go to "about:config"
and set the value of "dom.allow_scripts_to_close_windows" to true.

To make your windows close in FF (and IE7) browsers without modifying the config here is a nice workaround

Nice workdaround didn't work.

As there i lot of people use this service dom.allow_scripts_to_close_windows doesn't look helpful.


Any other ways?

Thanks

is all you really need to close the window in any browser, but as stated above the window will need to be opened by JavaScript to be closed by it.