This Flash warning (subject) is an issue for some people creating MP4 videos with Jing Pro for Mac.
Please navigate to this Adobe site and use the steps below to fix this issue:
Flash Player Help
- Click on the Edit Location dropdown, under the Global Security Settings tab, and select Add Location
- Next, click the Browse for files button.
- Navigate to Applications > Jing and select Open:
- If you still receive this warning, please Quit and Restart Jing.