Thunderbird Portable

i have deleted Thurnderbird from my drive C: and run it from a USB drive with a permanent drive letter (in my case, Q)
Since then, it no longer works as my default email client.

I have tried to reset default protocoll MailTo but I cannot see Thunderbird any longer as an available email client.
Any good ideas to try?

I was switching PCs and one was "probably" not shut down properly.

When I plugged in my portable drive containing portable apps and clicking on Mozilla Thunderbird, Thunderbird wanted to create a new account as if the old one does not exist.

I can go directly to the ThunderbirdPortable/App/Thunderbird/Thurderbird.exe and get my email this way but not by bringing up the portable app and clicking on Mozilla Thunderbird. It wants to create a new account.

How do I fix this?

Can I tell T-Bird to the body of an email in text on some accts and HTML on others?

Assume I want to set an environment variable just for Thunderbird PortableApps.

It should not be visible outside for other programs.

How can I achieve this?

Peter

Hello!

Hello,

I will change the splash screen from Thunderbird portable Version: 52.5.2 (32-bit)

How can i do that?

All of a sudden, after years of use, with no alerts, I am getting anti-virus alerts on my work computer when I start/use Thunderbird portable. I would like to post a printscreen, but don't see how to do it. I also can't test the detected item because McAfee deleted it. But from the log there is this:

Hi, I'm using Mozilla Thunderbird, Portable Edition, and I was wondering if there was an option to block the software with a password so that the content of my e-mail messages does not appear without the correct password. I searched if this option exists in Mozilla Thunderbird, but dindn't find it. Does anyone know a way to protect the software with a password? I prefer open source options or free ones. Thank you.

Windows 10 64bit
ThunderbirdPortable 52.5.0 32bit

If mailto links are assigned to be opened with ThunderbirdPortable, it seems to truncate the command line arguments it sends to thunderbird.exe.
I've tested the same long mailto link, almost 1000 chars long (the raw url encoded version) with predefined body etc, with the same profile in both portable thunderbird and a normal thunderbird installation. In the normal installation (same version 52.5.0 32bit) it works just fine. I've tested the mailto link in Firefox 57, Edge and IE11, all with the same result.

I can't see images in incoming messages. However, if I forward the same message, in the drafting window I can see the graphics.
Also, when I send a text with color, in Sent I see it without color. What can be the reason?
TB 52.4 - Windows XP