Click on each link to submit it to firefox, then copy each link and paste it in the reply to this thread.

If it's a crash, let's get the crash logs from Firefox.

Is it an actual crash (you get the plugin has crashed message from firefox) or is it an Out of Memory condition (you get the grey exclamation point)?.

Are you running any security, anti-virus, anti-malware, or software firewall products? If so, what are they and what are their versions?.

Can you give me step by step instructions to reproduce the crash, or is it random?.

It will help me narrow down the possible causes and/or have someone try to reproduce the problem in our testing lab. If you're still having stability problems after disabling hardware acceleration, just start here and try and answer all of the questions as accurately as possible. If it does, updated drivers will hopefully solve your problem - if not, you're looking at upgrading hardware and/or OS, or just leaving Hardware Acceleration disabled on this particular machine.

You might just want to skip directly to the video troubleshooting guide first, disable hardware acceleration and see if the problem goes away. I've included some information on how to test for the driver problem below. The dedicated chips are much more efficient at decoding video, audio and rendering 3D graphics, but there is no way to insulate from buggy drivers and hardware - if we hit a driver bug, unfortunately, there's generally no recovering, and we'll exit as best we can.

We've been focusing on performance and power consumption over the last year, and that means leveraging the purpose-build hardware rather than the general-purpose CPU. The most common cause for stability problems is old graphics and/or sound drivers. I don't have enough information to make a good guess at this point.

I've branched this to a new thread so that we can actually troubleshoot it.

Firefox flash plugin vista