In Snow Leopard, Apple downgraded the installation of Flash to an earlier version (version 10.0.23.1), which is known NOT to be secure and is NOT patched against various security vulnerabilities.
You should update to the latest version immediately:Â http://get.adobe.com/flashplayer/
This is a simple update:
- Download the latest flash version
- Close your browsers
- Run flash installer
- Your are done!