WARNING : a backup of your profile (.thunderbird directory) seems mandatory.

Start by reading :

As always :

yum --enablerepo=remi update thunderbird

The enigmail and lightning extensions are also available.

This new version introduce some new features, including the New Search which create a problem (for me) :

$ du global*
435652    global-messages-db.sqlite

Yes, I find that 400Mo of indexing data (for near of 1Go of mails), is quite huge. I can imagine a lot of issues for whose who use a NFS mounted home. Nicely, this can be disabled.

Build for Fedora 6 to 10 are available.