Tracker Blocker: Stop trackers in emails

UPDATE DECEMBER 2025: The extension is working again and blocking pixels! It stopped working a year ago but it is working now, and even better, it now shows a COUNT of how many pixels have been blocked.

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This extension will block open-tracking pixels in Gmail. There are two types of people who should use it:

1. If you send cold email or email marketer sending campaigns through Gmail, you want accurate open tracking. Right now if you use a platform like GMass, YAMM, Mailshake, or Lemlist for example, and you open your own email from your Sent folder, or you open a bounce notification, the open-tracking pixel will fire, causing a false open to be registered in your campaign reports. This extension will stop those "false opens" from registering.

Note that right now, the extension only blocks open tracking pixels from GMass. In time, it will block pixels of the aforementioned platforms as well.

2. If you're a privacy advocate who doesn't want "opens" to be registered on emails that are sent by email marketing platforms.