Hello. It would be nice to be able to trigger pseudo-class like `:hover` from an extension like we can do in Firefox with [`addPseudoClassLock()`](https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/inIDOMUtils#addPseudoClassLock()). An alternative could be to allow triggering untrusted event (like `hover`) from the web extension. Thanks to add such a function.