Understand permissions requested by apps and extensions
Apps and extensions you install may want access to your data. When they do, you'll see a warning. You may also see a warning when an app or extension gets updated and it wants new or different permissions.
A warning doesn't necessarily mean the app or extension is dangerous, just that it can be.
Note: If you suspect an app or extension to be unsafe, don't install it. You can check an item's ratings and reviews to help you decide if it's trustworthy.
Where you may see permissions
You may see a permission notification if you do the following:
- Install new items. Apps and extensions may need to use your personal data to work properly. You'll have to decide if you feel comfortable sharing your information.
- Update an item. You might see a warning message when an extension or app you already have gets updated. That's because the update might include new or different permissions.
Recognize permission levels
Below are the permissions apps and extensions may request and their potential risk levels. You can always uninstall an app or extension if you’re not comfortable with the permissions it requests.
High alertAll data on your computer and the websites you visit
This alert means the item contains a plug-in called NPAPI that can access almost anything, inside or outside of your browser. For example, they could use your webcam or read your personal files.
Medium alertYour data on all the websites you visit
This alert means the item can read every page you visit—your bank account, your web email, your Facebook page, etc. This item could use the information in your cookies to request or modify your data from these websites.
This alert means the item can read the pages you visit on a list of specified websites. Besides seeing all your pages, this item could use the information in your cookies to request or modify your data from websites.
Low alertYour list of installed apps, extensions, and themes
This alert means the item can see the themes, extensions, and apps you have installed. It can't install items, but it could enable, disable, uninstall, or launch items that you've installed.Your bookmarks
This alert means the item can read, change, add to, and organize your bookmarks.
Your browsing history
This alert means the item can read and erase your browsing history.Your tabs and browsing activity
This alert means the item can see the addresses and titles of websites you visit. It can also open and close tabs and windows, as well as navigate to new pages in open tabs and windows.Your physical location
This alert means the item uses the current location of your computer or device.Data you copy and paste
This alert means the item may scan the data stored in your operating system's "clipboard." The clipboard is a running list of the information you copy, including sensitive or private information like phone numbers or email addresses.Optional permissions
This alert means the item may ask you to deny or allow optional permissions after it's been installed. If you allow optional permissions for an item, you can't change them after that.