What is your computer system and Firefox?

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options) key, and then starting Firefox. A small dialog should appear. Click Start In Safe Mode (not Refresh).

Is the problem still there?

Use this link to check that your plugins are up-to-date. If any are listed as unknown or research, do not worry about them.

what are the video card requirements for FF 46.0.1?

How much RAM is required?

How much Processor is required?

https://www.mozilla.org/en-US/firefox/system-requirements/

https://www.mozilla.org/en-US/firefox/notes/

Download Firefox Full Version For All languages And Systems

Thats pretty good info, but https://www.mozilla.org/en-US/firefox/47.0/system-requirements/ only reports hardware requirements for Windows and Mac. I need hardware requirements for Linux. Maybe what goes for windows goes for Linux? Does the processor need SSE2 capability for Linux?

I appreciate the links. First time I have heard anything but vague answers like hardware is too old.

I've called the big guys to help you. Good luck.