Mozilla runs an automatic check on all extension versions before they get published, and Recommended extensions also go through a manual review before publicati

Mozilla runs an automatic check on all extension versions before they get published, and Recommended extensions also go through a manual review before publication. Listings which do not participate in the Recommended extensions program may also get a manual review after they were published, but immediate human review is not guaranteed. If you're a developer, I'd recommend disabling automatic extension updates in Firefox, and configuring a script to get notified about updates, even if you only use Recommended extensions. Extension source viewer is excellent for reviewing updates yourself before installing, and it is maintained by Rob Wu, an engineer at Mozilla. https://addons.mozilla.org/en-US/firefox/addon/crxviewer/ https://addons.mozilla.org/en-US/firefox/addon/crxviewer/