Bruno , I am pleased that you (and all of us), now have this issue fixed. Thanks for posting your issue.
George. On Saturday, 12-10-2024 at 04:41 Bruno Schneider wrote: > On Fri, Oct 4, 2024 at 3:18 PM Bruno Schneider wrote: > > > > 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? > > For the record, after upgrading to 128.3.0esr-2, AAC support magically > reappeared. Solved. > > -- > Bruno Schneider > >