1345686 - Update to Thunderbird 45.8 removes Lightning

Status: RESOLVED WORKSFORME

(Calendar :: General, defect)

Description

[u277459]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:51.0) Gecko/20100101 Firefox/51.0
Build ID: 20170125094131

Steps to reproduce:

Let Thunderbird automatically update to version 45.8


Actual results:

When Thunderbird restarted after the update, Lightning (calendar) add-on was no longer installed.


Expected results:

Keep Lightning.

This happened with me with Windows 10.  I just fielded a support question where it happened to someone else (unknown OS).

Comment 1

[Jorg K (CEST = GMT+2)]

Yep, it happens every once in a while, cause unknown, see for example bug 1258474, bug 1326554, bug 1326474, bug 1329468 and others.

The standard answer is in bug 1329468 comment #4. If you read through that bug, the user lost his entire profile. So preferably don't do that ;-)

After removing the {e2fda1a4-762b-4020-b5ad-a41df1933103} folder, Lightning should spring back to life, if it doesn't, get it from AMO.

Comment 2

[Mark]

(In reply to Bruce A. Johnson from comment #0)

Happened to me too. Windows 7 x64. Went to addons and reinstalled Lightning and everything came back.

Easy solution (hope it is the safest!), but shouldn't have happened in the first place.

Comment 3

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

Reinstalling Lightning should be safe, as the profile is separate. I'm closing this WFM as we have a few other bugs open on this matter. It is unfortunately hard to pinpoint the cause of this bug.