... the one on the left won't play, the one on the right is fine.

Links that are not working for you would be helpful. I have no issue with this video. https://www.instagram.com/reel/DJXilumxFl7/ What OS? What Desktop? X11 or Wayland?

Operating System: openSUSE Tumbleweed 20250718 KDE Plasma Version: 6.4.3 KDE Frameworks Version: 6.16.0 Qt Version: 6.9.1 Kernel Version: 6.15.6-1-default (64-bit) Graphics Platform: X11 Processors: 16 × AMD Ryzen 7 5825U with Radeon Graphics Memory: 64 GiB of RAM (62.1 GiB usable) Graphics Processor: AMD Radeon Graphics Manufacturer: HP Product Name: HP ProBook 455 15.6 inch G9 Notebook PC

jonzn:

I have no problem with your link either. It's only 'messages', like this:

https://www.instagram.com/direct/t/6451366914966586/

... these videos of our kids. FF seems to treat the links as simple pictures now. Chrome does the same, so I don't think it's a FF bug and an old backup of my system is the same too. It's all fine on my phone, just the PC that has the issue. That list of system specs, how do I print that off? Meanwhile: Debian, xfce4, X11 ... but I don't think it's 'that kind of issue'. Still someone here might know how to cope with this. Could be that Instagram has sabotaged PC users and there's nothing FF or anyone else can do about it.

I don't do social media and the link wants me to login.

Nuts, yeah. Anyway I doubt this is a FF problem, other computer users seem to have the same issue, I think it's something Meta has decided. But I thought someone here might just have a solution if they are an Instagram user. No social media at all eh? Smart guy!