Lightning Version History

87 versions

Be careful with old versions!

These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.

Version 3.9b1 4.2 MB Works with SeaMonkey 2.34 - 2.34.*, Thunderbird 37.0 - 37.*

Version 3.8b2 4.3 MB Works with SeaMonkey 2.33 - 2.33.*, Thunderbird 36.0 - 36.*

Version 3.8b1 4.8 MB Works with SeaMonkey 2.33 - 2.33.*, Thunderbird 36.0 - 36.*

Version 3.3.3 4.5 MB Works with SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*

* Added locales cy, fi, pt-BR, tr.

Version 3.7b1 3.3 MB Works with SeaMonkey 2.32 - 2.32.*, Thunderbird 35.0 - 35.*

NOTE: This version is en-US only, since Thunderbird did not have a beta build for Thunderbird 35.

Version 3.3.2 4.3 MB Works with SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*

* Fixed locales that went missing in Lightning 3.3.1
* Added gd and lt locales.

Version 3.6b3 4.6 MB Works with SeaMonkey 2.31 - 2.31.*, Thunderbird 34.0 - 34.*

Version 3.6b2 3.2 MB Works with SeaMonkey 2.31 - 2.31.*, Thunderbird 34.0 - 34.*

Version 3.6b1 3.2 MB Works with SeaMonkey 2.31 - 2.31.*, Thunderbird 34.0 - 34.*

Version 3.3.1 4.2 MB Works with SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*

Version 3.5b1 4.5 MB Works with SeaMonkey 2.30 - 2.30.*, Thunderbird 33.0 - 33.*

Version 3.4b1 4.5 MB Works with SeaMonkey 2.29 - 2.29.*, Thunderbird 32.0 - 32.*

Version 3.3 4.2 MB Works with SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*

Version 3.3b2 4.1 MB Works with SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*

Version 2.6.6 3.6 MB Works with SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*

Version 3.3b1 4.5 MB Works with SeaMonkey 2.28 and later, Thunderbird 31.0 and later

Version 2.6.5 3.6 MB Works with SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*

Version 3.2b1 4.5 MB Works with SeaMonkey 2.27 and later, Thunderbird 30.0 and later

Version 3.1b1 3.4 MB Works with SeaMonkey 2.26 and later, Thunderbird 29.0 and later

Version 3.0b1 3.8 MB Works with SeaMonkey 2.25 and later, Thunderbird 28.0 and later

Version 2.9b1 3.8 MB Works with SeaMonkey 2.24 and later, Thunderbird 27.0 and later

Version 2.6.4 2.6 MB Works with SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*

Version 2.6.3 3.6 MB Works with SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*

Version 2.8b1 3.8 MB Works with SeaMonkey 2.23 and later, Thunderbird 26.0 and later

Version 2.6.2 3.6 MB Works with SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.0 - 24.1.0

Version 2.7b1 3.9 MB Works with SeaMonkey 2.22 and later, Thunderbird 25.0 and later

Version 2.6.1 3.6 MB Works with SeaMonkey 2.21 - 2.21.*, Thunderbird 24.0.1 - 24.0.1

Version 2.6 3.7 MB Works with SeaMonkey 2.21 - 2.21, Thunderbird 24.0 - 24.0

  • On Windows, the binary component is now signed. This avoids issues with some virus scanners.
  • It is now possible to make a recurring event finite without opening the custom recurrence dialog (see your event dialog).
  • You can now create a monthly recurring event on the last day of the month.
  • Events can have multiple categories, selection is available in the event dialog.
  • Updated to the latest timezone information 2013d.
  • Its now more obvious what to do when no calendars support email invitations.
  • Support for Google Calendar via CalDAV using their new v2 endpoint.
  • Mac and Linux now support overlay scrollbars, giving you more room in the month view.
  • Some view related performance fixes.
Important Information:
If you are using Google Calendar via CalDAV, you MUST upgrade to the newest endpoint. Please see this blog post for more details.

Version 2.6b2 3.5 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.0 and later

Version 2.6b1 3.4 MB Works with SeaMonkey 2.21 and later, Thunderbird 24.0 and later