Screen recording is usually seamless, but browser permissions and system settings can sometimes get in the way. Here is how to fix the most common problems.
1. Black Screen on Chrome (MacOS)
If you record your screen and the result is just black, it is likely a macOS permission issue.
Open System Settings (or System Preferences).
Go to Privacy & Security > Screen Recording.
Find Google Chrome in the list and ensure the toggle is ON.
Restart Chrome for the changes to take effect.
2. No Audio Recorded
If your video is silent, check these two things:
Microphone Permissions: When you first visited GrabScreen, did you click "Block" on the permission popup? Click the lock icon in your address bar and reset permissions.
System Audio: Remember, to record computer sounds (Zoom calls, YouTube), you must select "Browser Tab" or "Entire Screen" and check the "Share system audio" box in the popup.
3. Webcam Not Showing
If your webcam light is on but the preview is black, another app might be using it. Close Zoom, Teams, or Skype and refresh the page.
Still Stuck?
If none of these work, try clearing your browser cache or switching to a different browser like Edge or Firefox to isolate the issue.
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