Starting with Chrome 25, the extension will not work until the user activates.
Accordingly, 3rd party extensions will be disabled by default, if automatically installed, a warning dialog will be opened to provide users the option to enable the extension or not. Another function will automatically turn off all extensions from 3rd parties if it is already installed, there will be a prompt if the user wants to activate them.
Third-party extensions that want to automatically install must notify the user.
Chrome's product manager, Peter Lugwig, said that deciding to control third-party extensions is due to Google worrying that applications silently install it without acknowledgment. of users, can lead to security consequences.
Earlier, Firefox also implemented policies for managing add-ons (like Chrome's extensions), also because of concerns about security and privacy, especially enterprise security.