Profile installation

Hi,

I'm converting my extenstion to the new firefox installation api. But 
before that I'm trying to install it on the profile directory. I notice 
that, with the news install.js script, it seems that the onload event of 
the main windows doesn't fire. After some test I see that this happen only 
if:

1. I register at least a locale 
2. The extension is installed on the profile directory
3. It run "standalone", not run throught the url bar but directly
   e.g.: mozilla -chrome chrome://moztest/content/
4. the problem happen only the "second time" (!?!?) I run the extension

Here http://downloads.mozdev.org/mozimage/moztest.xpi there's a simple 
extension (for the old installation api) that has only a listbox filled 
when the main window is loaded. But it doesn't work. I've test with 
Mozilla 1.4/1.5 e firefox 0.8 on both window and linux.

Thanks,
Lithian.