Please post all of your crash reports. Note: If any reports do not have BP in front of the numbers, click it and select Submit.

Product Firefox Version 37.0.1

Release Channel OS Windows NT OS Version 6.1.7601 Service Pack 1

Signature CCreateDeviceCache

The crash happen when you started Firefox, or after?

Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration. Then restart Firefox.

Poke around safe web sites. Are there any problems?

Try starting Firefox in its Safe Mode:

Hold down the Shift key when starting Firefox.

A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Next, try making this setting change:

(1) Type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste d11 and pause while the list is filtered

(3) Double-click the layers.d3d11.disable-warp preference to switch it from false to true

If you can make that change before Firefox crashes, does it make any difference when you close Firefox and start it up again normally? (This suggestion is based on the bug linked in your crash report.)