A new extension has landed in the Chrome Web Store called PixelBlock, which lets you block companies and individuals from tracking whether or not you’re opening their email. As you can see above, the extension shows a small red eye when it has detected a tracking attempt.
The creator, Omar Qureshi, had this to say about the plugin:
I made this to protect my email privacy and find out at the same time who’s trying to track me, and what they’re using. Was pretty surprised to see who used email tracking on me while sifting through my emails with PixelBlock on.
It’s not uncommon for companies that send out newsletters and the like to track those who are and aren’t opening them. With this quick extension, available completely free, you’re just one click away from being protected while using the web-based Gmail client.