Here's an example: http://www.sfgate.com/politics/article/First-segment-of-high-speed-rail-hits-another-snag-7683976.php

The clip on the train played fine for me.

If you have problems with current Shockwave Flash plugin versions then check this:

• see if there are updates for your graphics 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)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

• disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

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

If the video plays fine on Chrome, but not on Firefox, does that still mean that my graphics drivers might be out of date?

Further update: Flash Player driven videos work with Firefox on other websites (cnn.com, bbc.com/news, frex), but not on SFGate.com.

http://sfgate.com/ works for me.

Don't know why, but it seems to have been an issue with my AdBlockPlus. I disabled ABP for the particular website, and the videos work now.

That was very good work. Well Done. Please flag your last post as Solved Problem so others will know.