Capture videos for Yuja with Browser Capture, an app that runs in your browser.

There's no installation required and it's straightforward to use. You can capture a frame or a window of your choice, e.g. PowerPoint, in addition to the "talking head video". 

You can launch the app from the top of your Media Library page, under Create Recording - "Record with Browser Capture Studio".

P.S. Other ways to make videos in Yuja are:

• Yuja Software Capture desktop app, which is (only) slightly more feature-rich, but requires installation on either a PC or Mac. (This is recommended if you have a poor network connection.)

• Yuja Mobile mobile phone app for Android or iPhone.