Unable to Upload Videos in Facebook: Flash Player has Crashed

There could be a couple reasons for that.
Please find two solutions below. We do expect at least one of them would work for you.
Regards,
Hi,
This error normally occurred because of the browser compatibility issue.
1. If you are using the Firefox browser to upload the videos you have to use the adobe flash plug-in. When you start to upload the videos error message will prompt at the top of the browser screen. Accept it to download the plug-in and restart the browser.
2. If you are using Google chrome, you do not need to add any plug-in to the browser because almost all plug-ins are installed in your browser.
I suggest you to use Google chrome to upload videos to FaceBook.