Social networking sites like Facebook keep us always connected to the whole world. THE technology it is considered an advantage by most, but there are also some who find it quite annoying.
An example;
Your online status at Messenger of Facebook. Sometimes you may want to hide your online status on Facebook. Let's say you want to show that you are not connected to your chat in your office, or you do not want to show your status to people you are not comfortable with and very comfortable with.
It is assumed that Facebook in such cases allows you to hide the fact that you are connected and that you can stay invisible.
Unfortunately, Facebook's method does not work, as promised. Try opening the right-hand sidebar to show your friends in the chat.
Even if your status is set offline, your friends can see when you last visited Facebook:
How does it work:
Facebook uses ένα timer ο οποίος αποστέλλει ένα heartbeat μήνυμα στους servers της υπηρεσίας με το feature idle time every x minutes.
In the link below you can see the function informationof servers:
https://1-edge-chat.facebook.com/pull?channel=userid&seq=0&partition=-2&clientid=173aab&cb=ig3g&idle=426&qp=y&cap=8&msgs_recv=0&uid=userid&viewer_uid=userid&msgr_region=FRC&state=offline
The parameter idle=426 displays (counts) the total seconds the account is inertς. Η παράμετρος state=offline δείχνει αν είστε ενεργός ή except connection.
Let's see how we can hide from the social network:
You'll need AdBlock for your browser. After installing the addon (AdBlock - Chrome and Adblock Plus Add-ons for Firefox) add the following URL to the filters
https://*-edge-chat.facebook.com
One of the disadvantages of this method is that you will not be able to receive messages in real time. But if privacy is more important to you than replying to a message right away, the above method works perfectly. Besides, you can see your messages after a refresh of the page.