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Browser Extensions Audit

Risk

The risk

Why this matters

Browser extensions can read every page you visit, modify requests, and exfiltrate data. The Stylish extension sold browsing history of 2M+ users. Each extension is a potential backdoor you installed yourself.

Recommended tools

What to use

uBlock Origin
uBlock OriginOSSFree

Essential content blocker. Open-source, no data collection.

Setup guide

How to set it up

  1. 1

    Open your browser's extension manager

  2. 2

    Remove every extension you don't actively use

  3. 3

    For remaining extensions: check permissions — does a grammar checker really need access to all sites?

  4. 4

    Prefer open-source extensions and verify them on GitHub

  5. 5

    Install uBlock Origin if you haven't already

Verify

Check your setup

Run an automated check from your browser to see if this practice is active.