Browser Monster by George Rosu
See who’s watching you online: trackers, cookies, consent and the profile they build. Everything stays on your device.
Available on Firefox for Android™Available on Firefox for Android™
Scan the QR code to open this extension in Firefox for Android
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About this extension
See who's watching you online: the trackers on every page, where your data goes, what you agreed to in cookie banners and the profile it all adds up to. Optional auto-reject for cookie banners. Everything stays on your device.
Description
Browser Monster shows you what your browser gives away.
WHAT YOU'LL SEE
• The tracking companies on every page you visit, with a live count on the toolbar.
• A map of where your data was sent, by city and company.
• The advertising profile your browsing adds up to, estimated on your device.
• A file on every company that followed you: what it saw and how to opt out.
• Consent receipts: what you agreed to in each cookie banner, and a warning when trackers still load after you said no.
• Every cookie in your browser, grouped by the company behind it, with how long it lasts.
• Fingerprinting, session recording, email and search leaks, and hidden autofill fields.
• An A–F privacy score with one-click "fix next" cards.
WHAT YOU CAN DO
• Auto-reject cookie banners (optional, off until you switch it on): presses "Reject all" for you. Never "accept", never a paid option.
• Delete tracking cookies only, and keep your logins.
• Block a tracker or a destination you choose.
• Run a privacy checkup of Firefox's own settings and fix risky ones.
• Write a GDPR data request (UK or EU) to a company, ready to send.
• UK extras: an opt-out kit for data brokers, credit agencies and public registers.
PRIVATE BY DESIGN
Everything is worked out and stored in your browser. Browser Monster has no account, no analytics, no remote logging, and never sends your browsing anywhere. It collects no data at all.
Tags privacy, cookies, tracking, gdpr, cookie banner
Description
Browser Monster shows you what your browser gives away.
WHAT YOU'LL SEE
• The tracking companies on every page you visit, with a live count on the toolbar.
• A map of where your data was sent, by city and company.
• The advertising profile your browsing adds up to, estimated on your device.
• A file on every company that followed you: what it saw and how to opt out.
• Consent receipts: what you agreed to in each cookie banner, and a warning when trackers still load after you said no.
• Every cookie in your browser, grouped by the company behind it, with how long it lasts.
• Fingerprinting, session recording, email and search leaks, and hidden autofill fields.
• An A–F privacy score with one-click "fix next" cards.
WHAT YOU CAN DO
• Auto-reject cookie banners (optional, off until you switch it on): presses "Reject all" for you. Never "accept", never a paid option.
• Delete tracking cookies only, and keep your logins.
• Block a tracker or a destination you choose.
• Run a privacy checkup of Firefox's own settings and fix risky ones.
• Write a GDPR data request (UK or EU) to a company, ready to send.
• UK extras: an opt-out kit for data brokers, credit agencies and public registers.
PRIVATE BY DESIGN
Everything is worked out and stored in your browser. Browser Monster has no account, no analytics, no remote logging, and never sends your browsing anywhere. It collects no data at all.
Tags privacy, cookies, tracking, gdpr, cookie banner
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Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Optional permissions:
- Clear recent browsing history, cookies, and related data
- Access browsing history
- Monitor extension usage and manage themes
- Display notifications to you
- Read and modify privacy settings
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.1.0
- Size
- 3.42 MB
- Last updated
- 6 days ago (Oct 24, 2026)
- Related Categories
- License
- All Rights Reserved
- Version History
- Add to collection
The developer of this extension asks that you help support its continued development by making a small contribution.