Exposing chrome JS objects to content without __exposedProps__ is insecure and deprecated. See https://developer.mozilla.org/en/XPConnect_wrappers for more information.
Wustajenje JS-objektow typa chrome wobsahej bjez __exposedProps__ je njewěste a zestarjene. Hlejće https://developer.mozilla.org/en/XPConnect_wrappers za dalše informacije.