Can a package be returned to a previous version

[Keith]

On 10/3/23 5:37 PM, Bret Busby wrote:
> Hello.
> 
> As mozzarilla have downgraded and sabotaged Thunderbird to the latest
> version 115.3.1 (64-bit) so as to increase fraud, email spoofing and
> otherwise malicious email, by concealing senders' email addresses and
> recipients' email addresses, after having made the mistake of "updating"
> Thunderbird to this sinister and defaced version, I am wondering whether
> it is possible to upgrade it to the previous, safer, and, more usable,
> version, without uninstalling it and trying to find an installable
> package of the previous version.
> 
> Thank you in anticipation.
> 

No, not without downloading and manually installing it. The updated 
115.3.1 version has superseded 102.15.1 so it's no longer present in the 
packages list. However, the actual 102.15.1 thunderbird deb packages 
have not been deleted from the archive server as of yet.
Here's the link to the archive

http://archive.ubuntu.com/ubuntu/pool/main/t/thunderbird/

The program deb packages for 102.15.1 are near the bottom of the page.

Should be aware that there's been a number of security vulnerabilities 
(some critical) affecting the 102.x.x and prior versions of Thunderbird. 
Mozilla has stated there will be no security patches made for the 
102.x.x and earlier versions.

-- 
Keith