Facebook said on Tuesday it had revised its policies to allow users to see data shared by websites and other apps about them with the social network to improve targeted ads.

The company's website tracks the history of your browsing of websites outside its network by logging in to those sites via the "Login via Facebook" button. This type of user activity in these sites is called "Off-Facebook activity".

For example, if you log in to a clothing site through Facebook, this site shares information about the user's activity with Facebook, and with the new amendment users can see the history of their activity "outside of Facebook".

"We started by gradually making activity outside Facebook available to people in Ireland, South Korea and Spain," Facebook executives said in a post on the company's blog.

According to the social networking company if the user scans his activity outside of Facebook, the latter will remove the user identification information from the data that applications and websites choose to send.

"We don't know which websites you visited or what you did there, and we won't use any of the data you disconnect to target ads to you on Facebook, Instagram or Messenger."

Facebook also said it expects this to have some impact on its business. The company has been attacked and criticized by lawmakers and regulators for privacy practices.

However, the site "Bzfid" on technical affairs that the announcement of Facebook did not include the feature of deleting information about users, the property will not link the identity of the user and his information becomes anonymous, but his information will remain stored on Facebook.

For example, let's say that you are an Al Jazeera fan but you don't want your identity and information to appear.

But the question remains: why keep this information as long as it will not be used commercially from Facebook?