Facebook knows what you're doing on other sites and in real life. This tool lets you see what it knows about you.

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Go to your Facebook settings, then select "Your Facebook Information."

Go to your Facebook settings, then select "Your Facebook Information."
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Under "Your Facebook Information," select "Off-Facebook Activity."

Under "Your Facebook Information," select "Off-Facebook Activity."

Here is a direct link to the Off-Facebook Activity settings page.

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You'll be greeted by some information explaining Facebook's methods for tracking your activity outside the network.

You'll be greeted by some information explaining Facebook's methods for tracking your activity outside the network.

A banner will preview some of the websites and apps that Facebook knows you've used. Click on the app icons to see a full list of those sources.

A banner will preview some of the websites and apps that Facebook knows you've used. Click on the app icons to see a full list of those sources.

Here is a direct link to the full activity list.

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The full list will include third parties that shared your activity with Facebook in the past 180 days. Clicking "Clear History" will delete this information that Facebook has saved.

The full list will include third parties that shared your activity with Facebook in the past 180 days. Clicking "Clear History" will delete this information that Facebook has saved.

In my case, over 600 apps and websites had shared my browsing history with Facebook.

To turn this tracking off, click on "Manage Your Off-Facebook Activity" from the menu on the right side of the screen.

To turn this tracking off, click on "Manage Your Off-Facebook Activity" from the menu on the right side of the screen.
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Toggling the switch next to "Future Off-Facebook Activity" will stop Facebook from saving your future activity to your account. However, it doesn't stop third parties from sending Facebook information about you.

Toggling the switch next to "Future Off-Facebook Activity" will stop Facebook from saving your future activity to your account. However, it doesn't stop third parties from sending Facebook information about you.

Here is a direct link to the future activity settings page.