I understand you are unable to install the new SlingPlayer for Chrome Extension. I have a couple of things you can try that should resolve the issue. If you are not seeing a yellow bar at the top of your page asking to " Enable the SlingPlayer within your browser settings" try these steps:
1. Launch Chrome
2. Type "chrome://flags" (without quotes) into the address bar
3. Scroll down and click "Enable" under "Enable NPAPI”.
4. Quit Chrome, and restart the computer.
If you are seeing that nasty yellow bar try this:
1. Open a new tab in Chrome
2. Click Apps in the top left-hand corner of the page
3. You should the SlingPlayer for Chrome, if it is grey Click to enable it
Hope this was helpful!