You’re allowing the extension to live in your browser, potentially watching everything you do. We’re not suggesting that they all do this-but the ability is there. When you install a Chrome extension, you’re essentially entering into a trust-based relationship with the creator of that extension.
Here’s how to make sure an extension is safe before installing it. The problem is that these extensions can also steal data, watch your every move, or worse.
Much of Chrome’s power and flexibility comes from its huge ecosystem of extensions.