Thunderbird Portable

I have big problems with my Thunderbird being stable. For more than ½-1 year almost, it crashes every single time eventually during mail checks. It works several minutes and pulls down emails (IMAPs) and then suddenly it crashes TB. It's a 32-bit version I use.
It checks many email addresses (20+) I use for different tasks.

Is there a x64 bit version also?
-could this be part of the problem why it crashes after a little time?

I used it before for many years without it crashing!

Any suggestions to what it can be??

~J

It look like invalid file was uploaded for ThunderbirdPortable_141.0_English the file not have any exe
and giving error "Mozilla Thunderbird, Portable Edition cannot be started. You may wish to re-install to fix this issue. (ERROR: thunderbird.exe could not be found)"

Is Tools>Export meant to work for the portable version? I tried 3 times and zip files are successfully created. Howeverf I can't open the zip file because it says invalid.

I have the desktop version as well and that works fine.

Since TB 128+- I have a problem with updating TB.
Before I didn't always waited for PA to release the new version.
I clicked on Help -> About and installed the update. After a restart of TB, I had the newest version.
Now, I can update, restart TB and I'm still running the old version.
I can repeat this 10 times and nothing changes.
When I look in to the app folder, there is an update folder where the new version is inside.
When I close TB and move this folder so overwrite the existing app, I have the new version running.

Hi,

I tried downloading the latest Thunderbird 128 ESR, but got the below error:

Not Found

The requested URL was not found on this server.

Has the download been removed due to any issue ?

link removed by mod jth

Regards

Thunderbird portable have always been solid for me until this morning. I have always updated to newer versions when prompted and been good except this morning. The installation stalled and my laptop froze up. So I restarted my laptop and tried to run TB but I get these error messages. It did not load at all. Can't seemed to attach image here to show error messages. So error status is 0xc0000020 and "Couldn't load XPCOM".

Hi there
I have been using a portable version of Thunderbird, on partition D for a long time, but because I find no way of making it the default Windows mail program, a feature that I often need, I have installed a local version but having problems with importing the data from the portable version, because it is well over the 2GB, actually around 6GB, with many accounts, too cumbersome to setup anew, etc.
I see instructions for importing data into the portable version, but not the other way round.

Sometimes Thunderbird Portable will let me drag and drop files to be attached to a message, other times it will not. (This morning it would; this afternoon it won't.) Is there a fix for this?
Note added a day later: Now it's working again.

When I try to open an attached file in an email message (say "Example.pdf") I get this error message, or something similar:

"An error occurred while opening a document from the file:
C:\Users\CHS2\AppData\Local\Temp\nsnD5B3.tmp\ContainedTemp\pid-20128\Example.pdf"

Based on ChatGPT, I tried adding a line like:

user_pref("browser.cache.disk.parent_directory", "D:\\cDat\\Programs\\TBird\\Temp");

but Thunderbird Portable overwrites the line if it's in prefs.js and ignores it if it's in user.js

Hi,

WIN 10, 64-bit, 128.5.2.esr, USB flash drive

2 tasks are offered:
“Write new message”
“Open address book”

The first opens a new message window for an unconfigured account.
The second opens an address book of an unconfigured account.