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Thunderbird Portable

Thunderbird portable - 2 buttons needed

Submitted by Dreamer8 on June 27, 2024 - 8:22am


I've been using Thunderbird Portable for many years, 32-bit version, now I tried the beta version for bug fix.

I downloaded ThunderbirdPortableTest_128.0_Beta_1_English.paf.exe portable version (64-bit) from, created backup of my Thunderbird folder, installed portable version over the existing portable 32-bit version, it was started correctly, window positions and sizes are preserved, all settings and accounts are preserved, even though it's a 64-bit version, I updated it to beta 4 successfully.

Can't update, very slow download

Submitted by lukasadrian on March 25, 2024 - 2:32am


I have the Versio 115.7.0 (64-bit) and want update to 115.9.0 but the download is just 2.2 kB/s. I have that issue since few days already. The download directly from SourceForge takes around 2 minutes.

I am in the Philippines and have 70 Mbps download speed. Should I update TB over the "Abound Mozilla Thunderbird"-Window.

Thanks and regards,


Edit: I think every app is very slow. KeePassXC just 3.0 kB/s. FireFox I can't update, I says there is an error maybe during an incomplete download. I have to try it again in few hours.

[Fixed] Thunderbird Portable 115.7.0 leaves registry keys on 64-bit Windows

Submitted by oldguy on January 29, 2024 - 4:24pm

I'm new to Portable Apps. This is my first post.

I've read a lot of material on, but I still don't understand how a portable app works with the Windows registry.

I'm starting with Portable Thunderbird so I'll use that as an example. I installed just the portable app itself, not the full portable apps launcher, since I'm just trying this out for now.

Thunderbird Portable v102.15.1 (64 bit) Menu Bar is Not Saved

Submitted by viking2 on January 15, 2024 - 5:34pm

I select View>Toolbars> Menu Bar to get the Menu Bar. However, after I restart Thunderbird Portable v102.15.1 (64 bit) it is gone. I need to re-add it each time after restarting.
How can I save the Menu Bar so that it is still there after restarting?

EDIT: I have no Add-Ons enabled, but when I start Thunderbird in Troubleshoot Mode, the Menu Bar is there.

Any running Thunderbird Portable is interfering with the setup or update process of another Thunderbird Portable

Submitted by hjok on December 6, 2023 - 8:33pm


I've noticed that if any Thunderbird Portable is running, an installation of another Thunderbird Portable is impossible at the same time.
This is the default behaviour of all Thunderbird Portable installers – in opposite to the Firefox Portable installers!

TB 115 - add security exception - hangs

Submitted by ejejej on November 5, 2023 - 10:14am

I got used to TB portable asking to "confirm security exception" at location or Regular installed Windows10 TB did never ask this nor does TB 115.
When I click "Get Certificate" this hangs for ever.
My E-Mail service provider suggests for TB. No special hint for TB portable.
I installed same TB 115.4.1 on Windows10. This does not ask for adding security exception AND works fine.