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How can I kill an app by holding the back button in Lineage OS 18?

One of the first things I've always done when installing a new Android was to enable developer options, then scroll down to the very bottom and enable the toggle for `Kill app back button"

Kill the foreground app by long-pressing the back button

I just upgraded to LineageOS 18, and I was very sad to discover that this option is missing!

How can I replace this functionality on LineageOS 18 so that I can force-close misbehaving apps by holding down the back button?

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  • I don't thin that this is an AOSP feature (it seems to be a LineageOS feature). Based on your recent questions I assume that you were using LineageOS on your old phone? Have you also installed LineageOS on your new phone?
    – Robert
    Jul 4, 2021 at 13:23
  • Yes, both are LineageOS. I upgraded from Lineage 15 (Android 8) to Lineage 18 (Android 11) and the option disappeared :( Jul 4, 2021 at 13:30

1 Answer 1

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To enable this feature in newer versions of LineageOS, go to

Settings -> System -> Buttons -> Back long press action = Kill foreground app

It appears it was moved from Developer options section to the Buttons section.

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