Is Tracker Blocker: Stop trackers in emails safe?
Tracker Blocker installs email-tracker blocking rules fetched from GMass.
Tracker Blocker enables pixel blocking by default and, when it starts or its setting changes, clears existing browser request-blocking rules and installs rules downloaded from GMass. Those remote rules control which email-tracking URLs Chrome blocks through declarativeNetRequest.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itGMass, Inc. - 1 other listing from the same operator, 1 of them carrying a finding
GMass, Inc. - 1 other listing from the same operator, 1 of them carrying a finding
What this publisher told the store about itself, and the other listings that told it the same thing.
Same store account
1 other listing published from this account, 400k+ users between them. 1 of them carries a finding.
Shared hosts - 1 hostname
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 2.0.1. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Block and redirect the requests your browser makes
declarativeNetRequest
Store data in your browser
storage
See which of your requests its blocking rules matched
declarativeNetRequestFeedback
Show you desktop notifications
notifications
Where it sends data
Destinations our analysis observed Tracker Blocker contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- www.gmass.co
Tracker Blocker sends data to www.gmass.co. No other extension we have analysed sends data here.