From Internet Explorer and Firefox on a PC: Go to the Windows Start menu on your computer and then to Control Panel > Add/Remove ("Programs & Features" in Vista & Windows 7) and click "Remove" next to "Yontoo Layers."
From Firefox on a Mac: In the top menu, go to Tools > Add-ons. Select the Yontoo Layers logo and then click Uninstall. Note: You cannot uninstall PageRage from a PC with these instructions; see the steps above for uninstalling PageRage from a PC.
How do you get rid of yontoo garbage snuck in by CNET?