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Tracker Blocker: Stop trackers in emails icon

Tracker Blocker Chrome Extension Analysis

Privacy, Security & Ad Blockers

Store listing title: Tracker Blocker: Stop trackers in emails

Chrome extension ID: okacfeiojkgmcaonaikblpicellplcdn

Tracker Blocker is a Chrome extension designed to detect and block email open-tracking pixels within Gmail. It aims to prevent tracking services from logging 'false opens' when users interact with their own sent emails, providing more accurate campaign reporting.

Developer:GMass, Inc.
Version:2.0.1
Size:10.44KiB
Last updated:
View developer profile
External:Chrome Web StoreOfficial website

Overview

Installs

7K+

Rating

★ 3.1

12 reviews

Languages

1 locales

Includes English (United States)

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

Privacy, Security & Ad Blockers

Pricing friction

Low review signal

Complaint intensity

Moderate review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

The extension is positioned as a specialized utility for Gmail users to block open-tracking pixels, targeting both email marketers who want to avoid false opens and privacy-focused users. Developed by the GMass team, it emphasizes compliance with Chrome's Manifest V3 standards.

Inferred product pattern

Single-purpose email utility serving as a supplementary tool for a larger B2B platform.

Review-backed pain points

The most significant pain point is a recurring claim that the extension simply does not function as intended, with multiple users reporting that it fails to block tracking pixels.

Observed feature gaps

Reviews indicate significant skepticism regarding the product's actual ability to block tracking, with users noting it fails even with the developer's own GMass tool.

Tags
Email TrackingGmailPrivacy ToolPixel BlockerGMass
Target users

- Email Marketers

- Gmail Power Users

- Privacy Advocates

Primary use cases

- Blocking tracking pixels in Gmail

- Ensuring accurate email open rate statistics

- Preventing self-opens from skewing campaign data

Positive themes

- Utility for marketers

- Integrates with GMass ecosystem

- Addresses false click/open identification

Negative themes

- Failure to block tracking pixels

- Lack of functional impact

- Inconsistent performance

Observed friction

- Performance complaints detected

- No pricing friction reported; the extension is free to use.

Evidence boundary: Evidence is drawn from 10 public user reviews and the official store description. Reviews are polarized between high-rating fans of the GMass ecosystem and low-rating users reporting technical failure. The sample size is small (12 reviews total), and some reports of the tool 'not working' span several years, potentially referencing deprecated versions.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

No specific support complaints, though users express frustration with product efficacy.

Reliability

Multiple users explicitly state the extension does not work or has failed to perform its core function.

Privacy

No privacy-related complaints observed.

Access & pricing

- Free usage observed

- No account requirement observed

- Free plan or free usage claimed

Store listing facts

Listing assets

- Screenshots: 1

- Videos: 0

- Languages: 1

Trust signals

- Privacy policy

- Developer contact

- Official website

- Support link

Store metadata

- Version: 2.0.1

- Size: 10.44KiB

- Last updated:

Store description excerpt
Short excerpt from the public Chrome Web Store listing; full copy is available on the official store page.
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. -------------------------------------------------------------------- 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…

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

Gmail tracking blockerblock email tracking pixelsstop email open trackingGmail privacy extension

Comparison

PixelBlock alternativeUgly Email alternative

Problem

false email open ratesemail tracking pixel

Alternative

email privacy toolblock email spy pixels

Similar extensions

Jump to related discovery paths:

More in workflowMore from this developer

FAQ

What is Tracker Blocker mainly used for?
Tracker Blocker is a Chrome extension designed to detect and block email open-tracking pixels within Gmail. It aims to prevent tracking services from logging 'false opens' when users interact with their own sent emails, providing more accurate campaign reporting.
What market signals stand out?
Early or small audience with limited review base. Last known update: 12/15/2025.
What should builders compare before entering this space?
Compare install concentration, rating quality, update recency, screenshots, developer portfolio, listing claims, and review-backed friction signals.
Is this page review-backed?
Backed by review samples. This page combines store metadata with selected review signals, while raw store metrics remain visible for comparison.

Screenshots

Tracker Blocker: Stop trackers in emails screenshot

Links

Website: gmass.co

Privacy policy: https://www.gmass.co/blog/gmass-privacy-information-what-data-does-our-server-store/

Support links: https://www.gmass.co/g/support

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