trustedUrls white-list file(s)

Provide a means to set the trustedURLs property for individual or multiple sites to reference a file for the site(s) "white-list" URLs. (Opposed to setting a long string in each and every site.)

And if a site needed a unique list, a unique file could be used.

(I.E. A white-list file could be used by multiple sites, or a site could use a unique white-list file.)