Analytic Firewall - Block tracking from GA4 — Sourabh Nagori

Analytics Firewall is a powerful, privacy-first extension designed to block intrusive tracking from the web’s most widely used analytics tools — Google Analytics 4 (GA4), Meta (Facebook) Pixel, and Microsoft Bing Analytics.

Whether you're a privacy-conscious user, web developer, or digital marketer, Analytics Firewall helps you take control of your online footprint by blocking behavioral data collection and improving your browsing speed.

🛡️ What It Blocks
Google Analytics 4 (GA4)
Blocks all outbound tracking requests to GA4 and earlier versions of Google Analytics (gtag.js, analytics.js, etc.), preventing websites from logging your behavior and events.

Meta Pixel (Facebook Pixel)
Disables tracking via fbevents.js, Meta’s powerful pixel script used across millions of websites for retargeting and analytics.

Microsoft Bing Analytics (UET Tag)
Blocks Bing's Universal Event Tracking (UET) scripts and analytics beacons used to record user behavior and ad performance.

⚙️ How It Works
Analytics Firewall runs quietly in the background, using declarative blocking rules to intercept and cancel tracking requests at the network level. It does not slow down your browser or collect any personal data.

No setup required

Works immediately after install

No permissions beyond what’s absolutely necessary

Zero data collection

Compatible with other privacy tools like uBlock Origin or Ghostery

🎯 Key Benefits
✅ Stop Online Tracking
Prevent websites from logging your visits, clicks, form submissions, and shopping behavior.

⚡ Speed Up Browsing
By eliminating unnecessary tracking scripts, your pages load faster and consume fewer system resources.

🔐 Enhance Online Privacy
Block big tech’s ability to collect, process, and retarget your data — across websites and devices.

🧪 Ideal for Testing
Developers and SEOs can test websites with clean sessions, ensuring analytics aren't triggered during QA.

🕵️ Lightweight & Secure
No ads, no bloat, no telemetry. Just pure privacy.

🌍 Use Cases
✔️ Privacy Seekers: Prevent tracking across blogs, eCommerce sites, news portals, and apps.

✔️ Web Developers: Test staging or live environments without triggering analytics.

✔️ SEO Specialists & Analysts: Verify if GA4 or Facebook Pixel is working or blocked.

✔️ Digital Marketers: Audit competitor websites for tracking infrastructure.

✔️ Educators & Students: Use in academic research to explore digital surveillance trends.

🛠️ Technical Details
GA4 Blocked Domains:
www.googletagmanager.com, www.google-analytics.com, analytics.google.com

Facebook Pixel Blocked Domains:
connect.facebook.net, www.facebook.com/tr/

Bing Analytics Blocked Domains:
bat.bing.com, bingads.microsoft.com

Blocking Type:
DeclarativeNetRequest API (compliant with Manifest V3)

Permissions Required:
Only access to network requests. No access to your browsing history, cookies, or personal data.

🧑‍💻 Developer-Friendly Features
No cookies modified or read

No interference with core web functions

Compatible with GA Debugger, Meta Pixel Helper, and Tag Assistant

Open for review & feedback via GitHub or support

📦 What's New (v1.0)
Initial release

Blocked GA4, Facebook Pixel, and Bing UET

Clean, optimized codebase with minimal performance footprint

❓ FAQ
Q: Does this block Universal Analytics too?
Yes, it blocks both UA (analytics.js) and GA4 (gtag.js).

Q: Will this break websites?
No. Analytics Firewall only blocks trackers, not essential website functionality.

Q: Can I unblock a tracker on certain websites?
Currently, per-site rules are not available. This feature may be added in a future release.

Q: Does this work with incognito mode?
Yes, if you allow it in ’s incognito settings.

🔧 Future Features (Planned)
Per-site tracker allow/block settings

Block additional trackers (Hotjar, Mixpanel, etc.)

Tracker blocking logs & reports

Exportable analytics blocking profiles

📌 Why Use Analytics Firewall?
In a world where surveillance capitalism is the norm, Analytics Firewall helps restore your online autonomy. Block the trackers, load pages faster, and reclaim your privacy — one click at a time.