Blue screen crashes are fairly rare and usually involve an incompatibility with your graphics card driver software. Start Firefox in its Safe Mode and disable hardware acceleration.
Hold down the Shift key when starting Firefox
In the small dialog that appears, click "Start in Safe Mode" (not Reset)
Open orange Firefox button (or Tools menu) > Options > Advanced
On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"
While you're in settings review mode, disable ALL nonessential or unrecognized add-ons on these two tabs:
orange Firefox button (or Tools menu) > Add-ons > Plugins category
orange Firefox button (or Tools menu) > Add-ons > Extensions category
Usually a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.