Mine has disappeared, too. I get this pop-up message when I click on the icon: OOPS, unexpected error. Please go to settings and reinstall the browser extension. Then there's a link to go to settings, which does not work. I am a computer dummy and have no idea what it means to try as an administrator. I am the only person who uses this computer. Not on a network. Can you tell me what I need to do? None of the things I have tried give me an option of reinstalling the browser extension. Thanks.