<h2>
  <span style="font-size: small;"><b>Have you ever noticed that whenever you visit some websites while browsing social networking sites like Facebook, Google+, or Twitter, they automatically detect that you're logged in? When you hit the "Like" button, it automatically posts to your wall, tweet, or stream. You may have noticed this behavior.</b></span>
</h2>

<h3>
  <span style="font-size: small;"><b>Then, know what happens behind the scenes</b></span>
</h3>

<h2>
  <span style="font-size: small;"><b>When you're logged into your Google or Facebook account and visit a movie review page on rottentomatoes.com, your browser automatically pulls in the "+1" button from Google's servers and the "Like" button from Facebook. These downloads include the session cookies your browser uses to inform Google and Facebook that you have previously logged in, and so Google and Facebook automatically learn about your personal interest in the movie page you're looking at, even if you never actually click on either of their buttons.</b></span>
</h2>

<h2>
  <span style="font-size: small;"><b>If you don't want to get tracked, here is a solution</b></span>
</h2>

<h2>
  <span style="font-size: small;"><b><strong>Note:</strong> The Priv3 Firefox extension mentioned in the original post is no longer actively maintained. However, the privacy concerns it addressed remain relevant today. Below are modern alternatives that provide similar or better protection against social media tracking.</b></span>
</h2>

<h3>
  <span style="font-size: small;"><b>Modern Privacy Protection Tools</b></span>
</h3>

<p>
  <span style="font-size: small;"><b>For Firefox users, here are recommended privacy extensions:</b></span>
</p>

<ul>
  <li>
    <span style="font-size: small;"><b><strong>uBlock Origin</strong> - A powerful, open-source ad blocker and privacy tool that blocks tracking scripts and social media widgets. <a href="https://addons.mozilla.org/firefox/addon/ublock-origin/" target="_blank">Install uBlock Origin</a></b></span>
  </li>
  <li>
    <span style="font-size: small;"><b><strong>Privacy Badger</strong> - Automatically learns to block invisible trackers. <a href="https://privacybadger.org/" target="_blank">Learn more about Privacy Badger</a></b></span>
  </li>
  <li>
    <span style="font-size: small;"><b><strong>Facebook Container</strong> - Isolates your Facebook activity from the rest of your web activity. <a href="https://addons.mozilla.org/firefox/addon/facebook-container/" target="_blank">Install Facebook Container</a></b></span>
  </li>
  <li>
    <span style="font-size: small;"><b><strong>Multi-Account Containers</strong> - Keep your different online identities separate. <a href="https://addons.mozilla.org/firefox/addon/multi-account-containers/" target="_blank">Install Multi-Account Containers</a></b></span>
  </li>
</ul>

<h3>
  <span style="font-size: small;"><b>Original Priv3 Extension (Historical Reference)</b></span>
</h3>

<p>
  <span style="font-size: small;"><b>The Priv3 Firefox extension was designed to let you remain logged in to the social networking sites you use and still browse the web, knowing that those third-party sites only learn where you go on the web when you want them to. All this happened transparently, without the need to maintain any filters. Priv3 was free to use and was developed with support from the <a href="https://www.nsf.gov/" target="_blank">National Science Foundation</a>.</b></span>
</p>

<p>
  <span style="font-size: small;"><b><a href="https://priv3.icsi.berkeley.edu/" target="_blank">The Priv3 Firefox Extension (Original Site)</a> - <em>Note: This extension is no longer actively maintained and may not work with current Firefox versions.</em></b></span>
</p>

<p>
  <span style="font-size: small;"><b>For the most up-to-date privacy protection, we recommend using the modern alternatives listed above, which are actively maintained and compatible with current browser versions.</b></span>
</p>

</div> </div>