Mozilla now, and not sure how long it's been doing this, does code review on all submitted extensions to their extension marketplace. Google chrome's store is l

Mozilla now, and not sure how long it's been doing this, does code review on all submitted extensions to their extension marketplace. Google chrome's store is less restrictive as they don't do any review of it but rely on user reports to find violations of TOU/malicious activity. Similar approaches to the apple app store vs. android store... up front binary check from apple vs. a permissive store with user reports being the primary thing that pulls apps from circulation.