Thunderbird Portable

So I upgraded my TB portable and then attempt to upgrade Lightning but it will no install. The script stops running. Now I have no access to my calendar. I would like to learn to to make it run, or revert TB 9 whatever back to an earlier version that worked with Lighting. Where are the calendar files? I was thinking if nothing else worked, I would just delete all of it and start over, but I don't want to loose that data.

I've chosen at least for now to remain with the Thunderbird Portable 3.x series.
I keep getting notices to upgrade to 3.17 (I'm currently at 3.16)
Googling and searching this site located:
https://portableapps.com/news/2010-12-09_-_thunderbird_portable_3.1.7 but the download link on it points to the main download and hence to Thunderbird 9.

Does anyone know where I can locate 3.17 which apparently was a some past time available?

[Edit add] I suspect the above was an erroneous post since on

Environment: Thunderbird Portable 9.0.1 on Windows XP Pro (32 bit).

Thunderbird Portable is run from the local hard drive (not from a USB one).
Thunderbird Portable has been upgraded from earlier versions gradually.

Scenario:

Installed automatically (from TERENA Personal CA) a personal certificate in Firefox Portable 9.0.1. I created certificate backup and imported into Thunderbird Portable (9.0.1), then I enabled in an account signing and encryption using this certificate. The account includes copied mail. Signed messages sent using this account cannot be verified.

I'm not sure this is a PA issue as such but it seems to me there may be some versioning issues happening (I am not suggesting either the PA or Moz communities are at fault as I can't work out which it might be).

I've noticed after upgrading Thunderbird Portable to 9.0, that it thinks it's on the beta update channel, and is thus offering me a beta of the next version as a recommended update.

I looked in the about:config window, and it shows app.update.channel is set to "beta" and it shows that as the default setting.

This does not seem right.

Hi,

Now I get the error message "Thunderbird has ceased to run" when I start the app, with those details even if I reinstall the app over the folder:

Problem signature:
Problem event name: BEX
Application Name: thunderbird.exe
Application Version: 9.0.0.4371
Application Timestamp: 4ef0b9ce
Name of the default module: MSVCR80.dll
Default Module Version: 8.0.50727.6195
Module Timestamp default 4dcddbf3
Exception Offset: 00048b76
Exception Code: c000000d
Exception data: 00000000
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1036

Hello,

I have an HTC Desire HD smart phone with Google OS.
Unfortunately the HTC Sync software only offers Microsoft Outlook to take the data from.

I want to use Mozilla Thunderbird Portable.
There I can manage my emails and my contacts.
And I want to use the "Lightning" Add-On for Thunderbird (to manage my appointments and my tasks).

The only reason why I am using Outlook is the missing sync support.
No matter what device you buy (Android, iOS, Windows Phone 7 and Symbian OS), every device can be synchronized with Microsoft Outlook.

How to copy All Emails from portable to regular version of thurnderbird?

Pl. guide.

- Hariram

Hi,

I was using Thunderbird portable when suddenly laptop goes hibernation due to low power. Plugged in AC power then resume hibernation doesn't seem to show any problem. Everything resumes as expected.

I then properly close all portable apps, then close main PortableApps menu, then unmount drive. Doesn't seem to show any problem either. Everything closes properly.

Hi everybody,
I used Thunderbird Portable to download mail (POP3). I've set up the account, and the program started merrily to download the mails (490 mails, about 1Gig). I've noticed that the subject of the message were not showing in the program window while downloading, but I thought it was not relevant.
At the end of the download, there are no email messages in the program. So I close and restart thunderbird.
It does search for other messages, and the messages start to show themselves in the program window, but they are now only 19!