Do you have to block a friend on Facebook?It's impossible for a user to contact you if you block them completely.It's possible to turn chat off for specific users if a complete block is too much.
Step 1: Click the Menu button.
At the top of the page is where this is located.
Step 2: From the menu, select "Settings".
Step 3: The "Blocking" option can be found in the menu on the left.
Step 4: You can enter a user to block them.
Step 5: The user you are blocking can be found in the search results.
Step 6: You should confirm that you want to block the user.
You will be unfriended as well as blocked from messaging them.You won't be able to see any content on your timeline.
Step 7: The chat list has a settings button at the bottom.
It seems like a gear.
Step 8: "Advanced settings" can be found from the menu.
Step 9: You can enter the name of the person you want to chat with.
Before you finish typing, you can choose from a list of possible matches.