This extension disables the top left hot corners. You can still click on Activities or press the dedicated key to reach the overview. Since 3.8, should work with other extensions modifying the Activities button. On versions prior to 3.8, may not disable other hotcorners in multiscreen configurations and won't work on fallback/flashback mode.
Unfortunately, to help prevent spam, we require that you log in to GNOME Shell Extensions in order to post a comment or report an error. You understand, right?