GNU IceCat 68.8.0esr: No sound

[sirgazil]

Is this version of IceCat working for you? Yesterday I upgraded all my 
applications. Sound was working in IceCat, but not anymore. 

I've tried restarting it, checked system volume controls, IceCat volume 
control, and per player volume control. There is no sound.

Sound works in the system and in other browsers (Epiphany, Chromium).

$ LANG=C guix describe
Generation 80   May 08 2020 15:18:18    (current)
  sirgazil-x ef6ac93
    repository URL: https://gitlab.com/sirgazil/guix-channel-x.git
    branch: master
    commit: ef6ac9331a7847fdec6f0eb199524b1b755ba0df
  guix 35c43fc
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 35c43fcdbb408a5755efebc13241dd9082360aa1


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