Icon of program: Mozilla Lightning

Mozilla Lightning for Windows

By Mozilla Calendar ProjectFreeUser Rating

Key Details of Mozilla Lightning

  • Organize your schedule in a calendar that's fully integrated with your Thunderbird email
  • Last updated on 06/04/20
  • There has been 1 update within the past 6 months
  • The current version has 0 flags on VirusTotal badge_icon
The Download Now link will prompt a local download of the Firefox extension. To install the extension directly, open the file using your Firefox browser.

Enlarged image for Mozilla Lightning

Editors' Review

Download.com staff

Lightning makes Thunderbird soar above Outlook for home use, and places it on nearly equal ground in the office. It includes an overhauled interface with easy-to-use buttons for jumping between email and your calendar, LDAP directory support for event invites, and Sun Java Calendar Server support.

Work on the plug-in is now handled by Mozilla as they prepare to integrate its code into Thunderbird for the big version 3 update coming later this year, but that doesn't mean the plug-in isn't ready for prime-time now. A menu bar for switching between mail and calendar views can live either above or below the folder tree on the left. On the right side of the main pane is a new panel for quickly viewing and managing events and tasks. Option-heavy, it can show only events, only tasks, both, or hide the pane completely, as well as make changes to and create new events and tasks.

Events are searchable at the calendar top. Just below it is a hideable pane showing upcoming events in a spreadsheet format. There are built-in presets for the next seven, 14, and 31 days, and they can be arranged by start date, end date, title, location, and calendar. Lightning supports multiple calendars, including iCal, and has bidirectional support for Google Calendar with the Provider for Google Calendar plug-in.

There is also support for Exchange servers, although for enterprise use fans of Thunderbird/Lightning will likely have to talk to their tech support teams to get the servers configured properly. That, of course, is the biggest drawback compared to Outlook. Old bugs relating to timezone management and invitation responses have been eliminated, though, making this add-on an absolute requirement for all users, both at home and in the office.

What's new in version 68.7.0

Version 68.7.0 may include unspecified updates, enhancements, or bug fixes.

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Full Specifications

GENERAL
Release
June 4, 2020
Latest update
February 29, 2024
Version
68.7.0
OPERATING SYSTEMS
Platform
Windows
Operating System
Windows 7, Windows 10, Windows 8
Additional Requirements
Thunderbird 68.7.0 - 68.*
POPULARITY
Total Downloads
44,297
Downloads Last Week
4

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User Reviews

3.3/5

29 User Votes


Developer's Description

Organize your schedule in a calendar that's fully integrated with your Thunderbird email.

Mozilla Lightning is an extension for Mozilla Thunderbird and Mozilla SeaMonkey that adds an integrated calendar. It is based on the standalone Mozilla Sunbird calendar application, and includes interoperability with Microsoft Exchange servers, Google Calendar, and other calendaring applications.