For me it seems to be working well. Could you please provide more details of your code?

It's hard to display HTML accurately on this site, but I think you are trying to trick Firefox into thinking the current window was launched by a script and therefore can be closed by a script. A user reported on the mozillaZine Web Development forum that this stopped working in Firefox 21 (close window (Firefox version 21)), but I haven't tried to test it myself.

hi, You are right. I just saw the link your posted, it seems to be close to mine. But here is my requirement. We have a Quit browser button in the UI, upon clicking it we expect the browser tab to be closed. The code that I am using is,

<input type="button", onlcick= "javascript:window.open(, '_self', );window.close();" />

This code was working in FF17, I guess. But its not working correctly. The above code works in IE and Chrome seemlessly.

Is there a suggesstion how to fix this? Highly appreciate the help.

Actually due to security reason and user experience aspects you can now can't cause the browser to be closed[Completely], only popup windows can be closed or the one parent to a script.

Thanks. So are you saying there is no way through Java script, I can close the browser TAB?

Hi AbhilashSastry, I know some developers have a requirement for a button to close a window or tab originally opened by the user, but generally speaking, users know how to do that for themselves, so hopefully you can get the requirement waived.

Exactly, only popups or parent owned child's can be closed as of now. :) And jscher is right, you don't need closing the tab people know how to do it so why spare couple of lines for it?