Comment by Zigurd

Step 1: Within the Facebook App (Most Important) Open the Facebook app. Tap the Menu icon (three lines/your profile picture) > Settings & Privacy > Settings. Scroll to Notifications (under "Notifications and Permissions"). Tap Notifications, then select Push notifications. Toggle off all notification types (Comments, Likes, Tags, Birthdays, etc.) and turn off the main Push Notifications toggle. Check Email & SMS Notifications and Mobile Push Notifications to disable any lingering alerts there. Step 2: In Android System Settings Open your phone's Settings app. Go to Apps, Apps & notifications, or Applications (depending on your Android version). Find and tap on Facebook. Tap Notifications. Turn the main All Facebook notifications toggle OFF (it should turn gray). Step 3: For Browser-Based Notifications (Pop-ups) Open your browser (Chrome, Firefox, etc.) on your phone. Go to Settings > Site Settings > Notifications. Find Facebook in the allowed list and block it, or remove it entirely. If They Still Persist (Advanced) Check for app updates: Sometimes updates reset settings; re-apply Step 1 and 2. Use a third-party blocker: Apps like Freedom or similar tools can block the app or its notifications at a system level. Restrict Background Data: In Android Settings > Apps > Facebook > Mobile data & Wi-Fi, you can restrict background data usage.