{ "tabs": { "channel": "stable", "extension_types": ["extension"], "contexts": ["blessed_extension"] }, "extension": { "channel": "stable", "extension_types": ["extension"], "contexts": ["blessed_extension"] }, "extension.getBackgroundPage": { "contexts": ["blessed_extension"], "disallow_for_service_workers": true }, "extension.getURL": { "contexts": ["blessed_extension", "unblessed_extension", "content_script"] } }