What do the extension icons mean?
Green tick = safe, red exclamation = you overrode a warning.
A green tick on your Sapher Shield browser extension icon means no malicious content has been detected on this site. Meanwhile, when a red exclamation mark is displayed on your extension icon, it means you have proceeded against Sapher Shield's recommendation on this website.
To clarify - when Sapher Shield finds that a website may have suspicious activity, a low Sapher Shield rating notification will be displayed. You will then have the option to proceed at your own risk - simply check the box "I trust this website, add to my exemption list". Alternatively, you can choose "Continue Temporarily." When either of these options have been chosen, you proceed against Sapher Shield recommendation, and a red tick will be displayed on your Sapher Shield browser extension icon.