The issue appears to stem from the Main.layoutManager.hotCorners[] array being empty when hot corners are disabled: https://git.gnome.org/browse/gnome-shell-extensions/tree/extensions/apps-menu/extension.js?id=01893ca0485806f181d0401b7a6347a4adaa71de#n483
Would it be possible to leave the Main.layoutManager.hotCorners[] array defined and disable the activity overview by substituting no-op functions for actions? This is how the "No Topleft Hot Corner" extension works: https://github.com/HROMANO/nohotcorner/blob/f02c0398fe59202ba01b35ae04f8fe1fb46008e1/extension.js#L7 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1725941 Title: hotCorner modification breaks official apps-menu extension Status in GNOME Shell: Confirmed Status in gnome-shell package in Ubuntu: New Bug description: Ubuntu 17.10 x64 Activities Overview Hot Corner disabled using Gnome Tweaks When hot corners are disabled, the official Gnome Extension "Applications Menu" (https://extensions.gnome.org/extension/6/applications-menu/) is broken -- error shows when attempting to enable extensions and clicking menu does nothing. A small fix to the extension was suggested to the developer "Apps-menu crashes when there is no hotcorner" (https://bugzilla.gnome.org/show_bug.cgi?id=712625) but his response is that this problem does not fall in his court, at least while "dconf config option for disabling the activities hot corner" (https://bugzilla.gnome.org/show_bug.cgi?id=688320) is still open. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1725941/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

