In response to bug 1811279 (see further details there) and this one, I'm still using Ubuntu 20.04LTS , reverted TB back to previous version and then did: ``` sudo apt-mark hold thunderbird ``` ... in order to temporary hold this version.
In response to bug 1811279 (see further details there) and this one, I'm still using Ubuntu 20.04LTS , reverted TB back to previous version and then did:
```
sudo apt-mark hold thunderbird
```
... in order to temporary hold this version.