Tag: XMLHttpRequest permission denied

Error: uncaught exception: Permission denied to call method XMLHttpRequest.open FireFox/Mozilla browser fix / solution: Go to address “about:config” in Firefox (i.e. type that in the address bar and hit Enter) Search for “signed” in the filter bar Double click the item “signed.applets.codebase_principal_support” to change its value to “true” Create (or edit if already present) the…