I use Debian testing on a few machines. I recently upgraded all packages in one of them and now Firefox won't play some videos on YouTube or play any music on YouTube Music.
Comparing against a working machine not so up-to-date. I noticed that about:support#media shows "AAC SW" at the working machine and shows nothing related to AAC at the faulty one. It seems this is the problem: lost AAC support on the machine somehow. So I made a list of all installed packages on both machines and looked at differences. However, no package in the differences seem to have any relation to codecs. Anyone can help get support for AAC to work on Firefox? -- Bruno Schneider
