I'm a little surprised this isn't a more commonly needed feature: I'd like to remove attachments from my old emails in Thunderbird.
I used to use AttachmentExtractor, which saved a lot of remote and local disk space, but it is now incompatible. FiltaQuilla seems to be the replacement, but that looks to be incompatible with new versions of Thunderbird.
Is there an add-on or built-in attachment extractor for several emails at once? Doing this one at a time is not an option.