That’s not exactly true.

I comment on older posts on Lemmy, the same way I do on all Fediverse platforms, I copy and paste the post’s federated link into the site’s search bar.

This is how you upvote, downvote, comment and so on, when the posts are “invisible” to you.

So I think that this is a bad decision by Mozilla. Who’s idea was it to make a trackerless fork crash?

I can’t think of any good reason for them to make it impossible for a forked browser to function properly, if they try to remove all trackers.

Even if you can be sure that the code is junk and harmless, that’s unfortunate and just doesn’t look good IMO.