Question: how to turn off watch notification on facebook?
Answer: Step 1: Open the app and tap on the Watch icon in the top bar to go to the Watch screen.
Step 2: In the Watch tab, tap on See All followed by Manage.
Step 3: You will be taken to the Manage your watchlist page. ... 
Step 1: Open the Facebook website in a web browser and click on the Watch option present in the left sidebar.