On 15/08/2024 18:46, Stefan Monnier wrote:
Error no decoder found for audio/mp4a-latmIt relies on non-free AAC codec that you likely do not have installed.That's a side-issue: the web page I pointed to has various videos in various formats and none of them work (hence the error messages mentioning other "decoder not found" mime types).
If you have libavcodec installed (from "Recommends") then it might be some testing issue. There is no problem in bookworm. Firefox exposes some codec info in about:support#media