How do I turn off "Automatically Switch to Debug Perspective" mode in eclipse?

1

Other option is you can also reset your perspective preference from windows -> reset perspective and then run/debug then a dialog asking to switch to debug perspective when every time you debug the application and say check NO.

2

Goto Windows - > preference -> General ->perspectives -> make default your perspective or press reset to default to forget the previous settings.

Preferences -> Run/Debug -> Perspectives -> Open the associated perspective when application suspends