>So you're saying that because Google didn't completely up-end the security model and break almost every extension in the one-go, we should have no-progress towards a more secure extension model?
A funny argument to make because the thing that would make such a measure ridiculous as you rightly point out, is exactly what already makes the Manifest changes ridiculous in the first instance. They were making a rhetorical point and you elaborated on their point for them as if doing so expressed a disagreement.
I think a big step forward, towards a better security model, was overall a good thing, even if it meant that a good extension no longer had unfettered access to everything your browser saw. I don't think this change is ridiculous at all. And I don't want them to stop here either! v4 should close more of the avenues that malicious extensions are abusing! Extensions should declare everything up-front, so it's easy see if abuse is occuring.