Go to Adobe.com, and update ALL of their software.

If you are still having problems, please post the last 5 crash reports.

You probably do not need the Adobe Director plugin disable that or consider uninstalling it at least to see if that helps . (What do you need it for ?)

You apparently have

• Shockwave Flash 14.0 r0
• Adobe Shockwave for Director Netscape plug-in, version 12.1.2.152

I will have a look at the related bugs and see if I see any clues.

• Report for your Flash Hang, Crash ID: bp-170a4a00-dc78-43ea-a116-386ea2140618
• Cash Signature: hang | WaitForMultipleObjectsEx | RealMsgWaitForMultipleObjectsEx | MsgWaitForMultipleObjects | F_1152915508___________________________________

You can check for problems with current Shockwave Flash plugin versions and try this:

• check for updates for your graphics drive drivers
  https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
• disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
• disable hardware acceleration in the Flash plugin

See also:

• http://kb.mozillazine.org/Flash#Troubleshooting