As part of its operation, the Calendars extension requests access to your Google Account and your Facebook account through the relevant API. As part of this process, an access token for each service is stored on your computer - this token can only be used to perform actions that you have approved, but it persists when the browser is closed. Setting information for the extension also persists when the browser is closed. Calendars also stores information about your events, taken from either or both of the aforementioned services, in local memory while the browser is running. This information is cleared when the browser is closed. Calendars does not send any information to the alejrb servers, and we do not collect any information from the extension.