NoClickjack can be used without GuardedID and can be found on the Google Webstore.

Open a window in Google Chrome and go to https://chrome.google.com/webstore/

In the search bar on the left hand side, search for "CryptoColor".

Click on the "NoClickjack" extension, then click the blue "Add to Chrome" button in the top right of the extension window. Choose "Add Extension" when the window prompts you to.