How to disable your browser's pop-up blocker

When connecting to your Google Calendar account, you might see an alert about the browser's pop-up blocker blocking the Google Calendar connection window. The message might say: "The window was unable to open, and may have been blocked by a pop-up blocker. Please add this to the list of the sites your pop-up blocker allows to open”.

There are two possible ways in which this can be fixed:

  1. Create an exception for This will whitelist ScheduleOnce with your browser and pop-ups from ScheduleOnce will not be blocked.
  2. You can disable the pop-up blocker entirely.

The following links provide step-by-step instructions for each browser type:


Microsoft Internet Explorer is not a supported browser type.

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