Comment 33 for bug 1769383

@azzar1 Did you try out the suggested fix by @mchaberski? The enable() function sets dockManager intially to null and then calls conditionallyenabledock(). But in the disable() function always dockManager.destroy() gets called without a type-check raising a TypeError. I think the null-check should be implemented in any way.

This would explain why the suggested fix by @didrocks is working by disabling mod extensions, because disable() is not getting called anymore.

Maybe someone can try out if the code change fixes the bug for the normal dock, cause i am using dash-to-dock.