[Houshalter]

That looks really cool, though I think it would have a hard time navigating past the first few menus, and could hit features that are only rarely meant to be touched (e.g. "delete everything".) Perhaps a searching algorithm that intentionally tries to explore every menu and feature, navigate to them and then test them. Or intentionally tries things it knows are more likely to find bugs.

[fzaninotto]

All the gremlins are configurable, you can specify which elements they can interact on (and therefore exclude "dangerous" elements).

Relevant doc: https://github.com/marmelab/gremlins.js#configuring-gremlins