Addons

A list of useful addons for Mozilla Thunderbird:

Name	Description
Calendar Tweaks	Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.
ICS Inspector	This extension provides many debugging options related to calendar development. This includes showing the ics data for an event or calendar, evaluating javascript on an event or calendar, and some menu options for debugging.
Lightning	Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

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