Bug#569662: Related error messages

[Michael G. Hansen]

When clicking on a link, this error message is displayed in the 
JavaScript Error Console:

Error: uncaught exception: [Exception... "Component returned failure 
code: 0x80004005 (NS_ERROR_FAILURE) 
[nsIExternalProtocolService.loadUrl]"  nsresult: "0x80004005 
(NS_ERROR_FAILURE)"  location: "JS frame :: 
chrome://communicator/content/contentAreaClick.js :: openLinkExternally 
:: line 188"  data: no]

When I right-click on a link and select "Open Link In Browser", I get:

Error: uncaught exception: [Exception... "Component returned failure 
code: 0x80004005 (NS_ERROR_FAILURE) 
[nsIExternalProtocolService.loadURI]"  nsresult: "0x80004005 
(NS_ERROR_FAILURE)"  location: "JS frame :: 
chrome://messenger/content/nsContextMenu.js :: CM_openLinkInBrowser :: 
line 830"  data: no]