Downgrade Thunderbird 6 to Thunderbird 5 from PPA

[Jim Byrnes]

On 08/18/2011 10:03 AM, Alan Pope wrote:
> On 18 August 2011 14:13, Dotan Cohen<dotancohen at gmail.com>  wrote:
>> Now Thunderbird was upgraded to version 6 and broke an essential
>> extension. I found a Thunderbird 5 deb from here:
>> https://launchpad.net/ubuntu/oneiric/i386/thunderbird/5.0+build1+nobinonly-0ubuntu5
>>
>
> What release of Ubuntu are you on? That deb is from 11.10 which hasn't
> been released yet, so I would avoid it if you're on 11.04 or below.
>
> Have you contacted the author of the extension to see if they are
> planning to update it?
>
>> However removing the installed Thunderbird is giving me all kinds of
>> dependency issues, such as Enigmail. How does one "roll back" to a
>> previous version via aptitude? I tried using Synaptic's Fore Version
>> feature, but it is disabled on Thunderbird. Maybe that is due to the
>> PPA?
>>
>
> I would first disable the PPA, then "apt-get autoremove" thunderbird.
> It would probably be easier to then grab the version 5 release from
> Mozilla upstream and run that until the extension you need is updated.
> I'm not sure if you can suppress the update mechanism easily in 5 to
> prevent going to 6 for now. If you can find a deb for your release of
> Ubuntu then you could use that and "pin" it to prevent it updating.
>
> Al.
>

You can easily suppress it.  It asks you if you want to upgrade now or 
be asked again later.  I am waiting myself because a theme I use is not 
compatible.

Regards,  Jim