How the addon of the firefox is accessing the file sytem
<p>firefox wont allow the javascript to save a file in client machine is the browser security policy </p>

<p><a href="https://addons.mozilla.org/en-US/firefox/addon/1046" rel="nofollow">https://addons.mozilla.org/en-US/firefox/addon/1046</a></p>

<p>the above linked addon can save a file then why cant we save a file in the filesystem using javascript </p>
