Chrome does a good job of notifying you when an extension needs new permissions, like if it's been hacked to keylog you on every page or something. Of course,

Chrome does a good job of notifying you when an extension needs new permissions, like if it's been hacked to keylog you on every page or something. Of course, most users have fatigue for these sorts of dialogues and just hit accept (I have done the same in a lot of cases). I also like Extension Update Notifier https://chrome.google.com/webstore/detail/nlldbplhbaopldicmcoogopmkonpebjm?utm_source=chrome-app-launcher-info-dialog https://chrome.google.com/webstore/detail/nlldbplhbaopldicmc... Which pops up a toast notification whenever your extensions get updated. At least then it's not a silent upgrade and you can investigate if you wish.