I found that after Firefox v29, a LOT of my settings and<BR> add-ons were changed / reset. Try this;<BR> '''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]''''' <BR>While you are in safe mode;<BR> '''''Firefox Options > Advanced > General'''''.<BR> Look for and turn off '''Use Hardware Acceleration'''.<BR> Then check ALL of your settings. Browser and add-ons. Then restart.

See also: * https://developer.mozilla.org/using_remote_xul * Remote XUL Manager: https://addons.mozilla.org/firefox/addon/remote-xul-manager/ If there are issues with accessing local files then try this extension: *caps-fileuri: https://addons.mozilla.org/firefox/addon/caps-fileuri/ See also: *https://developer.mozilla.org/en-US/Firefox/Releases/29/Site_Compatibility#Security