Hi @Hilary Marsh
According to your case description, you cannot share the screen in the Firefox browser. Please try the following steps to solve the problem:
- Check the permission settings of Firefox: Open Firefox and visit the website you want to share the screen. On the left side of the address bar, click the lock icon and select "More Information". In the "Permissions" tab, make sure "Screen Sharing" is allowed.
- Use macOS system settings: Open "System Preferences". Select "Security & Privacy". Click the "Privacy" tab and select "Screen Recording". Make sure Firefox is selected.
- Update Firefox or try another browser: Make sure you are using the latest version of Firefox. If the problem persists, you can try using another browser (such as Chrome or Edge) for screen sharing.
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