No, its absolutely not. The new firefox addon signing requirements are a hundred percent more restrictive then the requirements to get listed on the chrome store.
Wrong. Chrome IS more restrictive, they don't allow non-Chrome Store add-ons AT all. With Mozilla's implementation all non-AMO add-ons need to do is go through the automated signing process. Which only takes a couple of minutes, at most.
> they don't allow non-Chrome Store add-ons AT all
This is wrong. You can drag and drop an extension into the Chrome extensions folder (or enable the developer mode in the extensions page) to install any extension in Chrome.