Unable to connect to Thunderbird account

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1

Ubuntu Support Template

Ubuntu Version: 24.04.4 LTS
Desktop Environment (if applicable): KDE Plasma
Problem Description:
Last thing I saw when shutting down last night was a system message that the Thunderbird snap was updating. Today, I’m unable to login on my email account. Thunderbird displays “Host contacted, sending login information….” and that lasts forever.

I can login to gmx on imap on Firefox, so it looks like the Thunderbird snap update upset something.

UbuntuStudio only started installing the snap version of Thunderbird a few years ago. How can I eliminate the snap version and revert to a ‘normal’ version of Thunderbird? What precautions are needed to preserve my old messages?

2

Open a Terminal.
Please run snap info thunderbird
Please show us the complete ouput. (Use copy/paste from the termnial)

3

Here is the output you requested:

$ snap info thunderbird
name: thunderbird
summary: Mozilla Thunderbird email application
publisher: Canonical✓
store-url: ``https://snapcraft.io/thunderbird``
contact: ``https://www.thunderbird.net/contact/``
license: unset
description: |
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with
great features!
commands:
- thunderbird
snap-id: k1Ml1O9GzSO2QftV0ZlWSbUfQ78nN460
tracking: latest/stable/ubuntu-24.04
refresh-date: yesterday at 23:32 CET
channels:
latest/stable: 140.8.0esr-1 2026-03-09 (1017) 238MB -
latest/candidate: 140.8.0esr-1 2026-03-06 (1017) 238MB -
latest/beta: ↑
latest/edge: ↑
monthly/stable: 148.0-1 2026-03-09 (1019) 224MB -
monthly/candidate: 148.0-1 2026-03-06 (1019) 224MB -
monthly/beta: 149.0b2-1 2026-03-03 (1013) 248MB -
monthly/edge: ↑
esr/stable: 140.8.0esr-1 2026-03-09 (1017) 238MB -
esr/candidate: 140.8.0esr-1 2026-03-06 (1017) 238MB -
esr/beta: ↑
esr/edge: ↑
installed: 140.8.0esr-1 (1017) 238MB -

4

I tried rebooting the machine, and restarting thunderbird a dozen times without success. But now, after a couple of hours absence, another restart of thunderbird and all seems good. I can connect and collect my emails via pop3.

So it seems the problem has resolved itself - maybe even a glitch at gmx pop3 server.

5

Very happy to read that the problem went away on its own.

FYI: Next time, you can paste your terminal output much more easily.

``` 
use three backticks (```)
to designate
the start 
and end
of the output.
```
6

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