Turn Firefox into reminder tool, that displays and manages lists of date-based reminders and ToDo’s, remind important dates (birthdays, anniversaries, etc).It is not a full fledged calendar application but works as a reminder tool.As these days many use FireFox atleast once a day, so this extension would work as a good reminder tool.This extension also works with Thunderbird also.

To add a reminder or ToDo’s just double click the Reminderfox icon in the extension tray in firefox, use can have notes for the description of a reminder, categorize the remiders in groups, alarm settings , you can load a webpage at the scheduled alarm.

For changing the settings of ReminderFox, open Add-On’s under Tools Option In the toolbar.[ Alt + T , A ]. Select Reminderfox addon and press Options.

ReminderFox works with Firefox : 1.0 – 3.0a4