Comment 136 for bug 275471

(In reply to comment #128)
> Is there a known relatively stable nightly that hass all of the fixes

Thunderbird 3.0 beta 2 has all changes up to late February, which includes
bug 436615 but potentially not all follow-up patches. It won't have the disk cache enabled, for example; I don't know which relevant patches may be missing. Nightlies are "per definition" unstable, but you could use a test profile and some free IMAP account where you do not mind the (unlikely but possible) case of loosing data.

> (comment #129) max_size setting for 'View > Display attachments inline'

That's not here but filed as bug 294763.