In my test i didn't used the object window("MozillaDropShadowWindowClass", 2). I wrote that i compare to ways off firefox launcing. And only one thing was different which was about window("MozillaDropShadowWindowClass", 2).
After the script launch the Firefox app, the script must find some objects - aplication fields.(For example login fields). If cann't find whose fields, the script stoped. At once i check the object tree in the TC8 and cann't see the object which i need. At the object tree must be for example 100 objects, but where onlly 80. Then i press refresh, but anyway did't find them.
If i run Firefox manuly and check the object tree. I can see all objects
With the chrome i have the same problems
