Users can add extensions and Chrome applications. To find what is permissible to add to a P-CCS district Chromebook, please click the following:  https://chrome.google.com/webstore/category/for_your_domain


Some extensions and apps have been identified as "bad" because they interfere with Google applications or the performance of Chromebooks. Here is a list of some:

  • Geometry Dash
  • Calendar Countdown
  • AdBlock/Adblock Plus
  • Funky Carts
  • Flappy Bird
  • The following may cause problems when a new page is opened:
    • Extensions that show a celebrity's picture all the time
    • Wallpaper applications


To access extensions and apps:

  1. At the top right next to your profile picture click the Moresymbol.
  2. Click More tools, then Extensions. Extensions are listed first, then Chrome apps.
  3. Find what is questionable, and either delete or disable it.
    1. If deleting, make sure to also delete any bookmarks created to use it.
    2. The extension/app may have also been pinned to the task bar, also called the shelf. Delete it.
  4. Restart the Chromebook.


A good rule of thumb to follow: If you don't see this grid-like symbol next to an extension (which appears in red), you should probably delete it by clicking Remove. Or if there is a trash can symbol, click that.

ChromeExtension Admin .PNG


Another option would be to disable all user-added extensions and Chrome apps, then re-enable them one at a time to see if your problem occurs. If it does you should delete it. If you see a message that a product has become unstable or corrupt, delete it.


If unable to fix your problem please click the link Contact Technology Department's Helpdesk.