Firefoxを再起動させるuserChrome.jsなのですが、3.0系では動きません。
使えるようになりませんか？


function ucjsRestartApp() {
var appStartup = Cc["@mozilla.org/toolkit/app-startup;1"]
.getService(Ci.nsIAppStartup);
appStartup.quit(appStartup.eRestart | appStartup.eAttemptQuit);
}

(function() {
var overlay =
<overlay xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<commandset id="mainCommandSet">
<command id="cmd_RestartApp" oncommand="ucjsRestartApp();" />
</commandset>
<keyset id="mainKeyset">
<key id="key_RestartApp" key="P" modifiers="accel,shift" command="cmd_RestartApp" />
</keyset>
<menu id="menu_FilePopup">
<menuitem label="Restart" accesskey="R" insertbefore="menu_FileQuitItem"
key="key_RestartApp" command="cmd_RestartApp" />
</menu>
</overlay>;
overlay = "data:application/vnd.mozilla.xul+xml;charset=utf-8," + encodeURI(overlay.toXMLString());
document.loadOverlay(overlay, null);
})();