Dark Mode Facebook App Gone. If dark mode doesn’t show up, force quit the app by sliding your finger up slightly from the bottom of the home screen, then swipe up on the facebook app. Users report dark mode theme missing from facebook app on ios.
First, try completely shutting down your app. On facebook home, tap the “hamburger” menu icon with three horizontal lines. A redditor has confirmed that they got it to work on version 317.0.0.38.119 of the.
In the app setting, turn on.
Now open the facebook app and the 'dark mode' should be back. Then head to the device’s settings, go to the app section, and select facebook. On the next page, select on or use system settings to enable dark mode on your app. Uninstall and then reinstall the facebook app.