If you're troubleshooting an issue, you may also want to try the following steps in this order. (They help solve a huge percentage of requests we receive!):
1. Clear your cache and cookies (You can copy and paste chrome://settings/clearBrowserData into a Chrome tab and click Clear data.)
2. Turn on "Hardware Encoding"
3. Perform a Hard Refresh.
4. Try uninstalling the extension and then re-installing.