L'errore preso direttamente dal forum:
Actually that trick:
selection = focusedWindow.__proto__.getSelection.call(focusedWindow).toString();

- is used in a lot of extensions.

It needs to be replaced with (to save you time)
selection = focusedWindow.getSelection().toString();

see also: http://developer-test.mozilla.org/docs/Safely_accessing_content_DOM_from_chrome

Fonte: Firefox 1.0.3 released - Any Extension issues? - MozillaZine Forums

Per il download il riferimento è sempre lo stesso...



Diego Guidi

ThreeX 3D RealGIS

Terra Nova SIT