Below is explanation of how to avoid being tracked online step by step you can use.
Block ads and cookies before they can download.
BetterPrivacy extension for Firefox allows you to choose which Flash cookies to permit and delete.
You can use AdBlock Plus for both Firefox and Google Chrome, this tool removes ads from sites and lets you customize its 40 filter subscriptions for known malware domains.
Improve browsing security with OpenDNS. This tool will filter dangerous or inappropriate content based on the criteria you select.
Clear your history, cache and cookies on exit.
How to avoid being tracked online step by step on browser.
To set Firefox browser not to save any of your browsing history, click Tools > Options > Privacy and select Never Remember History.
To set Google Chrome to clear data on exit, click the wrench icon and choose Options > Under the Hood > Content Settings and check “Clear cookies and other site and plug-in data when i close my browser”.
In Internet Explorer, Click the gear icon or Tools menu and choose Internet options > General and give check to Delete browsing history on exit to remove cookies, cache, saved passwords and Web-form data automatically when the browser closes.
Always sign out whenever done using a web service.