chrome://myplugin/content/test.exe

myplugin/install.rdf
myplugin/chrome.manifest
myplugin/content
 - myplugin.js
 - myplugin.xul
 - myplugin.exe

параметри также неполучиль передать

function launchfile1(path)
{
try
{
    var file = Components.classes['@mozilla.org/file/local;1']
        .createInstance(Components.interfaces.nsILocalFile);
    var process = Components.classes['@mozilla.org/process/util;1']
        .getService(Components.interfaces.nsIProcess);
    file.initWithPath( path ); 
    if(! file.exists()) 
    {
        //alert('file not found!');
    }    
else
  { 
    alert('start');
    file.launch(); 
    process.init(file); 
    var arguments='links /url1/url2'; 
    process.run(false, arguments, arguments.length); 
  }
}
    catch(err){}
}

function test(event)
{
    var elem = event.target
    var overElem = document.elementFromPoint(elem.clientX, elem.clientY);
    alert(overElem); // null
}

var elem = event.target
  alert(elem); // not nul

    var overElem = document.elementFromPoint (elem.posX, elem.posY);
    alert(overElem); // null

<box width="80" maxwidth="80" maxheight="25">    
        <browser id="browsers" autoscroll="false" type="content-primary" src="http://www.some.com" flex="1"/>    
    </box>

<browser id="browser" autoscroll="false" type="content-primary" src="http://www.google.com" flex="1" width="100" maxWidth="130"/>

content toolbar content/
overlay chrome://browser/content/browser.xul chrome://toolbar/content/toolbar.xul

#TutTB-Logo-Button {
    list-style-image: url("img/logo.png");
    background: transparent;
}

<?xml-stylesheet href="chrome://toolbar/skin/toolbar.css" type="text/css"?>   
<script type="application/x-javascript" src="chrome://toolbar/content/toolbar.js" />

 <toolbarbutton id="TutTB-Logo-Button" tooltiptext="Toolbar" label="text" oncommand="LogoClick(event)" />