If you’re ready to get deadly serious about browser security, you’ll want to try Firefox’s Total Cookie Protection.

Total Cookie Protection confines cookies to the site where they were created. That means necessary cookies cannot be used to track you to other websites.

This feature creates what the folks at Firefox call a separate “cookie jar” for every website you visit.

It does make exceptions for for third-party log-in service that you actually mean to use.

To use Total Cookie Protection, you must set Firefox to Strict Mode. Here’s how:

Click the three-line menu icon and choose Protections Dashboard from the drop-down menu.

Then click on Manage your privacy and security settings.

By default, Firefox is set to Standard protection which blocks several types of trackers.

If you want to up your security game, tick the box next to Strict. This stronger protection may cause some sites not to work properly. But you’ll have the highest level of online privacy and protection.