Ok, this might be a dumb question, but is it really technically possible in any way - even a convoluted one, like manually downloading HTML pages from Facebook? - to mass import posts from one’s Facebook into Mastodon or Friendica instead of painstakingly copying them one by one? I’ve got a 10+ year archive to port and it’s a daunting task to go through them…
The last poster says: “I found a roundabout way to go at it by transfering the posts to wordpress, I’ll figure it out from there :)” I would have liked more info on that, though I’m afraid there would still be a catch - I don’t use Wordpress anymore and never was a power user, so I’m not sure it would be possible on a free tier to stash an entire Facebook archive on a Wordpress page - and then what about importing it into the fediverse? There should be a guide for this somewhere.
That sounds like a good approach. If you can get the posts into WordPress, there’s so many scripts out there that will export the WordPress database into other formats.
You might be able to self-host WordPress if it is just a matter of importing. As WP is federated, you can, presumably cross-post it from there.