How can I uninstall it on Mac computer?

Simply delete the application from your Applications folder. A pop-up will automatically appear to delete the extension as well.

You can also manually uninstall the extension from the Settings tab of the app.

Manual uninstall (Advanced users only)

If you're still having trouble, you can try manually uninstalling it with the terminal.

This is for advanced users only.

Do not proceed if you are not comfortable with the terminal. We cannot take any liability for your actions.

Reboot into recovery mode (restart and hold down ⌘+R)
Under the menu item Utilities launch Terminal app
Enter csrutil disable to disable System Integrity Protection (SIP)
Reboot again
Now open the Terminal.app
Enter systemextensionsctl list and hit return
You'll get a list of all installed system extensions, find the FilterOnMe camera extension.

*       *      
ZUV3YWYN43 com.edwardchung.filteronme.CameraExtension (1.0/1) CameraExtension [activated enabled]

Note the teamID and the bundleID of the extension you want to uninstall

8. Then run the uninstall command, for example:

sudo systemextensionsctl uninstall ZUV3YWYN43 com.edwardchung.filteronme.CameraExtension

in the Terminal and hit return.

The general formula is:

sudo systemextensionsctl uninstall teamID bundleID

9. Wait a bit and you should see a success message: Success

10. Open Finder and remove the files/folders of the extensions you wanted to get rid of in /Library/SystemExtensions . Just drag them to the trash. You'll be asked for an admin password.

11. Reboot again in recovery mode (see point 1.)

12. Under the menu item Utilities launch Terminal app

13. Enter csrutil enable to re-enable the SIP

14. Reboot again