Review for SmartSave Thunderbird Extension by taff178
Rated 4 out of 5 stars
Really good add-on. I used it oftenly to export old mails i want to archive. It helps to maintain TB content light.
Unfortunately it doesn't work with TB-3.0.1 although it is indicated (TB 0.8 to 3.0.*). Hope this will change, I miss SmartSave since I upgraded TB to 3 and I can't downgrade TB-3 to TB-2.
To create your own collections, you must have a Mozilla Add-ons account.