To hide your friends list on Facebook, you can adjust your privacy settings either on desktop or mobile. Here are the steps:

On Desktop

1. Log into your Facebook account.
2. Click your profile picture in the top right corner.
3. Select Settings & privacy, then click Settings.
4. In the left sidebar, click Privacy.
5. Scroll to the section How people find and contact you.
6. Find Who can see your friends list? and click Edit.
7. From the dropdown menu, select Only me to completely hide your friends list, or choose another option like Friends or Specific friends if you want limited visibility.
8. Click Done to save your settings

On Mobile (iPhone or Android)

1. Open the Facebook app.
2. Tap the menu icon (three horizontal lines) - bottom right on iPhone, top right on Android.
3. Tap Settings & Privacy, then Settings.
4. Under Audience and visibility , tap How people can find and contact you.
5. Tap Who can see your friends list?
6. Choose Only me to hide your friends list completely or select another preferred audience.
7. The changes save automatically

By setting your friends list visibility to Only me , no one else will be able to see your friends on Facebook, protecting your privacy effectively