Click 'Confirm' again to confirm the removal of the extension.Go to the Chrome menu and click Preferences ⇨ Extensions ⇨ Click 'Remove' next to the Copper extension.In the Chrome menu, navigate to Preferences ⇨ About Chrome and make sure Chrome is updated to the current version.Make sure the following options are selected:.In the Chrome menu, go to Preferences ⇨ Advanced ⇨ Privacy and Security ⇨ Clear Browsing Data.Below you will find some common fixes for any issues you may be experiencing with the Copper Chrome Extension for Gmail.