Probably providing a common calendar
If you're using google chrome if you look in the top right corner there are a button with 3 horizontal lines, click it, once you do that go down that list and click settings once you click that, hit extensions on the left side of the screen, after that you will see a list of extension you have find the extension you would like to delete and look far right to the extension and click the trash can. Once you click the trash can a pop up will appear and will say "Confirm Removal" and under that "Remove_______" If that is the extension you would like to remove continue if not go back to finding that extension If it is click remove
