Thank you for the crash IDs. They seem to point in many different directions. Could you try running Firefox in Safe Mode? Unfortunately, extensions are disabled, but you should be able to determine within a tolerable amount of time whether it makes a difference.

Firefox's Safe Mode disables extensions, hardware graphics acceleration, the JavaScript compiler, and some custom settings. More info: Diagnose Firefox issues using Troubleshoot Mode.

You can restart Firefox in Safe Mode using

Help > Restart with Add-ons Disabled

In the dialog, click "Start in Safe Mode" (not Reset)

Any difference?

One of the reports was a Flash crash. This is some standard guidance that addresses the most common issues:

(1) If you have any downloaders/recorders/other add-ons or external software that interact with the Flash player, make sure they are up-to-date or disable them

(2) Disable hardware graphics acceleration in Firefox and in Flash

(A) In Firefox, un-check the box here and restart:

orange Firefox button (or Tools menu) > Options > Advanced > General > "Use hardware acceleration when available"

(B) In Flash, see this support article from Adobe: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues

(3) Disable protected mode (Win Vista - 7 - 8)

See this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?

Thanks for the info. I'll try those suggestions and see how it goes.

I had tried disabling each add-on individually in the past, but it didn't seem like any one in particular was causing my problem because it would still crash even when each one was disabled one at a time.

Firstly try to reinstall the flash player might work for you

i also have a video tutorial which i am sharing with you. best solutions are given in the presentation tutorial that shall resolve your problem amicably.

http://www.youtube.com/watch?v=xAQecDTgzCI

Best of luck