Here is what it does. The extensions with Chrome or apps on your smartphone request tons of permissions. When you install many of these, you lose sight of which app is doing what. MyPermissions gives you a summary of each app’s permissions and lets you cut off the ones you don’t want to snoop.
I am careful with which apps/extensions to install, but I was surprised to see old apps that still had permissions granted. A recent update now includes active scanning for apps and their updates so that then the updates change the permissions level, you will know right away.
The interface is simple and gives you a quick and easy view of the overall status. MyPermissions is another tool to manage your privacy on your terms. And it’s free. See below for links.