It’s good to see this result replicated. The only thing I wish Firefox had natively was tab groups, they’re a really useful feature for various organizing things. Otherwise, they’re clearly one of not the best browser on the market.

Just use “Simple Tab Groups” extension. It’s pretty good. And on top of that you can use other extensions, so that for example all tabs within a group automatically get added to a container (isolating them from other tabs). Really useful when shopping for stuff so advertisers can’t track you around different shopping sites (or at least it makes it more difficult)

Can someone with more knowledge on the lemmy protocol/api bring some light into this? The way the linked posted is written, it seems like some random angry guy just hates lemmy for whatever reason.

To me it seems like a complete bs argument. As far as I can tell this tactic is possible with every service where users can provide content. Of course I can link to a site that reads users data. There’s basically no preventing this unless the (lemmy) clients provide their own modified browser that masks the users IP and other metadata.