Thunderbird Portable

Bonjour,
Je suis à la recherche d'un logiciel client gratuit, utilisable sur Windows 10 Pro, en POP,avec mises à jour régulières pour remplacer mon vieil Oulook 2003 déjà en POP, qui rencontre de plus en plus de problèmes avec windows 10 et n'est plus mis à jour depuis longtemps sauf à acheter un MSoffice récent.
Sur Outlook 2003, les données (mails, carnet d'adresses, taches etc..) sont stockées dans un unique fichier (.pst) aisément délocalisable.
La configuration des comptes en revanche se situe dans la base de registre.

currently google seems to disable access to its services except its own apps.
Is there some experience how to enable Thunderbird portable to use gmail or google calendar or address book stored at google?

91.8.1 64bit takes forever for handshake, and transmittal.. VERY noticeable compared to any of the previous updates.. Anyone else see this?

Hello,
I use USB Token for Digital Singing. It is working when I use on FirefoxPortable and other programs like Office and etc. Unfortunately when I want to use it on my email client (ThunderbirdPortable) I cannot add the singing. There isn't certificates in "Your Certificates" in the settings S/MIME Certificates.
What can be the problem?

I have just launched Thunderbird and can see this: https://i.imgur.com/2lqeMQl.png.
In settings I have it switched to: "Check for updates, but let me choose whether to install them".
Shouldn't update feature be totally disabled for portable application? I suspect an inexperienced user may launch auto-updates which in result will ruin portability of app.

The folder pane is broken after upgrading from TB 91.7.0 to TB 91.8.0.

The folder pane is still broken after fresh installing TB 91.8.0.

More info
http://forums.mozillazine.org/viewtopic.php?f=39&t=3090555

There is a workaround in the thread. Maybe helpful to someone else.

Phoenity Icons 3.4
Thunderbird Portable 91.8.0 with 2 Google IMAP accounts
Windows 10 Pro 20H2 32-bit

I have multiple MBOX files that are exported from the Thunderbird account. Is there a solution to view the content of that MBOX file on the system?

Neither of these two procedures work at all!

Hello,
has the latest TB protable app color themes / mode (including gray) in windows 64bit?
Thanks

Hello,
works app MozBackup for thunderbird portable and Xtraxtor for all portable email clients? I just need to transfer the whole clasic TB to the TB portable app at once.
Thanks.