Calendar broke

[spartanhooah]

I'm not sure what happened, but I can't use the calendar anymore. I've been using FossaMail for less than a week, and after I set it up, everything was fine. I installed the same extensions I had in Thunderbird (Lightning's 64-bit version, Google Contacts, MinimizeToTray revived, Provider for Google Calendar, and Thunderbird Conversations). However, this evening I went to add an appointment to my calendar, and noticed that the tab wasn't there. I opened the view menu to go to the calendar from there, and it's grayed out. I can click on the calendar icon in the upper right, but when it opens, the bar with "Synchronize", "Event", "Task", etc. has a copy just below itself, so there are two. No buttons on the main calendar view respond - I can click on the miniature calendar and change the month and select days, and I can check or un-check various calendars, but the main view is stuck on the day display and I can't choose a different tab (i.e. week, multiweek, month). I also can't scroll the day view; it's stuck with midnight at the top.

I know I could re-install, but with Google accounts that's kind of a pain I'd like to avoid if possible. Any advice?

Troubleshooting info:

Application Basics

Name: FossaMail
Version: 24.6.0
User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:24.0) Gecko/20140623 FossaMail/24.6.0
Profile Folder: Show Folder

(Local drive)
Application Build ID: 20140623133730
Enabled Plugins: about:plugins
Build Configuration: about:buildconfig
Crash Reports: about:crashes
Memory Use: about:memory

Mail and News Accounts
account1:
INCOMING: account1, , (imap) imap.googlemail.com:993, SSL, passwordCleartext
OUTGOING: smtp.googlemail.com:465, SSL, passwordCleartext, true

account2:
INCOMING: account2, , (none) Local Folders, plain, passwordCleartext

account3:
INCOMING: account3, , (imap) imap.googlemail.com:993, SSL, passwordCleartext
OUTGOING: smtp.googlemail.com:465, SSL, passwordCleartext, true

account4:
INCOMING: account4, , (imap) mail.msu.edu:993, SSL, passwordCleartext
OUTGOING: mail.msu.edu:587, alwaysSTARTTLS, passwordCleartext, true

Extensions
Google Contacts, 0.7.12, true, {BDD92442-0534-4D6F-A966-BAB7D561D781}
Lightning, 2.6.6, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}
MinimizeToTray revived (MinTrayR), 1.1.2, true, mintrayr@tn123.ath.cx
Provider for Google Calendar, 0.25, true, {a62ef8ec-5fdc-40c2-873c-223b8a6925cc}
Thunderbird Conversations, 2.7, true, gconversation@xulforum.org

Important Modified Preferences

Name: Value

browser.cache.disk.capacity: 358400
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.cache.disk.smart_size_cached_value: 358400
extensions.lastAppVersion: 24.6.0
font.name.monospace.el: Consolas
font.name.monospace.tr: Consolas
font.name.monospace.x-baltic: Consolas
font.name.monospace.x-central-euro: Consolas
font.name.monospace.x-cyrillic: Consolas
font.name.monospace.x-unicode: Consolas
font.name.monospace.x-western: Consolas
font.name.sans-serif.el: Calibri
font.name.sans-serif.tr: Calibri
font.name.sans-serif.x-baltic: Calibri
font.name.sans-serif.x-central-euro: Calibri
font.name.sans-serif.x-cyrillic: Calibri
font.name.sans-serif.x-unicode: Calibri
font.name.sans-serif.x-western: Calibri
font.name.serif.el: Cambria
font.name.serif.tr: Cambria
font.name.serif.x-baltic: Cambria
font.name.serif.x-central-euro: Cambria
font.name.serif.x-cyrillic: Cambria
font.name.serif.x-unicode: Cambria
font.name.serif.x-western: Cambria
font.size.fixed.el: 14
font.size.fixed.tr: 14
font.size.fixed.x-baltic: 14
font.size.fixed.x-central-euro: 14
font.size.fixed.x-cyrillic: 14
font.size.fixed.x-unicode: 14
font.size.fixed.x-western: 14
font.size.variable.el: 17
font.size.variable.tr: 17
font.size.variable.x-baltic: 17
font.size.variable.x-central-euro: 17
font.size.variable.x-cyrillic: 17
font.size.variable.x-unicode: 17
font.size.variable.x-western: 17
mail.openMessageBehavior.version: 1
mail.winsearch.firstRunDone: true
mailnews.database.global.datastore.id: ad2c99f0-b0f1-4f76-9698-e502f6e4f66
network.cookie.prefsMigrated: true
places.database.lastMaintenance: 1406489486
places.history.expiration.transient_current_max_pages: 104858
plugin.importedState: true

Graphics

Adapter Description: NVIDIA GeForce GTX 460
Vendor ID: 0x10de
Device ID: 0x0e22
Adapter RAM: 1024
Adapter Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Driver Version: 9.18.13.3788
Driver Date: 5-19-2014
Direct2D Enabled: false
DirectWrite Enabled: false (6.3.9600.17111)
ClearType Parameters: ClearType parameters not found
WebGL Renderer: false
GPU Accelerated Windows: 0

AzureCanvasBackend: skia
AzureFallbackCanvasBackend: cairo
AzureContentBackend: none

JavaScript

Incremental GC: 1

Accessibility

Activated: 0
Prevent Accessibility: 0

Library Versions

Expected minimum version
Version in use

NSPR
4.10.2
4.10.2

NSS
3.15.4 Basic ECC
3.15.4 Basic ECC

NSS Util
3.15.4
3.15.4

NSS SSL
3.15.4 Basic ECC
3.15.4 Basic ECC

NSS S/MIME
3.15.4 Basic ECC
3.15.4 Basic ECC

[Moonchild]

If you're using a 64-bit FossaMail, make sure you disable automatic updating of extensions. You were probably served a 32-bit version of Calendar by Mozilla.
Re-install the lightning add-on from the FossaMail website after you have disabled automatic extension updating.

[KiwiWifi]

I had the same issue, I found out that Lightning was updated to 2.6.6 which seems to be the latest version for Thunderbird.
Uninstalling that version and downloading the latest from http://www.fosshub.com/FossaMail.html reverted back to version 2.6.5 of Lightning.

After restart everything was back to normal.

It seems that FossaMail is sensitive to version numbers of Mozilla extensions, so it's a tip to disable Auto updates for add-ons.

Hope this helps someone.

[spartanhooah]

Thanks, that solved the problem.