Your web browser sends information about your computer platform, timezone, screen size, and many other details that advertisers use to track you. Plug these data points into a database and perform some analysis and your identity can be tracked and possibly forecasted.

Check out your browser's fingerprint:

• Panopticlick by EFF
• Comprehensive Explanation of Fingerprinting
• Tenta In-Depth Browser Test

Browser Extensions

• Prevent Ad Tracking with Privacy Badger from the EFF
• Enforce HTTPS Everywhere
• Block Scrips with uBlock Origin Chrome Store
• Script Blocker for Firefox
• Remove Link Tracking

Paid Options

These options offer a more robust solutions for travelers and full coverage of all your devices.

• Disconnect Me - Paid Service
• Track Off - Alters Your Fingerprint in Real Time!

Don't Trust

Ghostery, a popular ad blocker has been selling data to advertisers. User beware! Here is a study on ad blocker software. Ad Blocker Plus was caught doing the same thing years ago.

Website owners and companies use services that can record your screen for analytics and to see how customers use their website. But that also means they could capture you entering passwords or confidential information! Check out this list of sites that have session replay scripts. There really isn't anything you can do about this unfortunately!

Double Check:

• Deactivate ActiveX on Windows
• Uninstall Flash More here
• Click and Clean for Chrome

More Info

• Browser Security Vulnerabilities
• Find Your IP
• Check for IP Leaks
• How You Are Tracked Across Multiple Browsers
• Private Browsing Research Paper
• Ulitmate Guide for Secure Browsing
• List of Browsers
• List of Browsers
• What Browsers Do
• How Browsers Work