Firefox is hosed! I can't get it to refresh or come up correctly after logging off and on again!
Firefox won't download from smugmug nor will it refresh when using a cart based purchasing system. My entire Firefox seems to be sick....really sick and I've have to opt for using IE WHICH I HATE! Next stop would be Chrome.
Alla svar (1)
You may want to upgrade your Video Card Drivers since they are from 2011 https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration TRY NO HARDWARE ACCELERATION.
You may want to check into this as is possible using all your cores as is designed to do. Though this effects systems diff. Check your Task Manager and see if showing multiple cores in use and how much ram is being used. Also https://www.ghacks.net/2016/07/22/multi-process-firefox/ and https://www.ghacks.net/2016/02/15/change-how-many-processes-multi-process-firefox-uses/ and https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
Please let us know if this solved your issue or if need further assistance.