Same thing with Firefox. It's really frustrating. The options are incredibly sparse. I feel like there is a complete lack of creativity on the part of browser developers are to features that it'd be nice to have
Any user who knows enough to know what he is doing on that page already knows about it.
Chrome has chrome:flags but it's not as useful (mostly about turning ON new experimental features than restoring established behaviour). And with both cases, you can't rely on it being there at the next mi or update..