Mozilla Sunbird is a calendar and an advanced organizer for meetings, business tasks and events by Mozilla. It enables users to add reminders, set alarms, notes or tasks according to a routine in an easy way. It allows users to create calendars on a computer or create them online. It allows viewing and managing reminders and tasks by months, weeks or even daily. With Mozilla Sunbird, users can choose a category for a reminder among business, meeting, call, client, birthday, anniversary, follow up, holiday, status, idea, suppliers or projects to simplify the reminders. It also allows setting of alarms along with the reminders and snooze them for the desired time. Sunbird offers is capable of attaching web links or addresses along with a reminder. Users can set Sunbird to repeat the reminder every day, weekly, monthly or yearly. It also allows users to add a description to a task, describing task and plans on desired dates.