Changes

** {{Bug|798147}} Switch to correct pref pane if pref window already open

* Working on:

** {{Bug|1101381}} Printing throws error: DEPRECATION WARNING: getWebBrowserPrint is now deprecated, and fully unsupported for multi-process browsers. Please use a frame script to get access to nsIWebBrowserPrint from content

** {{Bug|1190179}} Port |{{Bug|1067325}} - Add an option to view html source in a tab| to SeaMonkey