When you install browser extensions in Google Chrome you are presented with a permissions request dialog before the extension is added to the web browser. Here you see all permissions that the extension requires so that you can make an educated decision whether to install it or not. It is likely that a large part of users clicks on the add button in the dialog right away without analyzing the permissions the extension requires first.
Google Chrome did not provide its users with options to look up permissions of extensions again after they have been installed. The only option available in this case is to visit the profile page of the extension on the Chrome Web Store website to look them up under the details tab there. While that is certainly a possibility, it is not really that practicable as you need to open the Chrome Web Store manually, search for the name of the extension, find it there, and switch to the details tab to check the access permissions.
Recent versions of Google Chrome, I have tested this in the Canary build, come with an experimental flag that adds an option to the browser to look up extension permissions for each installed extension locally.
The feature adds a link to open the permissions again on the page, as well as an activity link on the same page. The permissions link opens the very same pop up that users get when they install the extension in the browser. The only difference here is that you can only close the dialog at this time.
The activity link on the other hand displays activity of the extension when it interacts with websites and services. This can be really helpful for developers to debug their extension but also for users who want to find out where and how extensions interact with sites.
The feature needs to be activated before it becomes available. To do so enter chrome://flags into the browser's address bar and tap on the return key afterwards. Press F3 and enter Enable extension activity UI into the search form. Click on the enable link underneath it afterwards and restart the browser. The new feature becomes available afterwards and you can access it on the extensions page.Enjoyed the article?: Then sign-up for our free newsletter or RSS feed to kick off your day with the latest technology news and tips, or share the article with your friends and contacts on Facebook, Twitter or Google+ using the icons below.