↓こんなの出たんだけどshield-recipe-clientってのは一体何？
そもそも削除してないんだが

Clean Uninstall

Total number of preferences created by this extension is: 6.
Preference name Remove
extensions.shield-recipe-client.startup_delay_seconds
extensions.shield-recipe-client.enabled
extensions.shield-recipe-client.user_id
extensions.shield-recipe-client.api_url
extensions.shield-recipe-client.dev_mode
extensions.shield-recipe-client.logging.level