Abrowser not playing sound because it now requires Pulseaudio

It is not a "Trisquel problem". Sound in Abrowser works great on my systems. Have you tried launching 'abrowser' from a terminal emulator and "open" a video? An error message may be displayed. Also, does the "Applications" tab of "Sound", in the "System Settings", list Abrowser? Is it on?

>What's the problem with Pulseaudio for Trisquel?

I have no idea for I don't use Trisquel. But what's the issue with pulseaudio? Is it installed?

sudo apt-get install pulseaudio

I've noticed the same thing lately.

If I log in, start Abrowser, and try to play html5 audio or video I get "To play audio, you may need to install the required PulseAudio software."

However, if I play something in mpv or vlc and then restart Abrowser, audio in Abrowser starts working.

A simple solution is to either use IceCat/Iceweasel for audio playback (as the version of Firefox on which it is based still supports ALSA), or, if you prefer a browser based on newer Mozilla code (with support for WebExtensions), to use Waterfox instead. Other Mozilla browsers with ALSA support include Seamonkey/Iceape (but not all Firefox add-ons are compatible).

Magic Banana, i have no System Settings. Only desktop session settings and the dconf-stuff (where i can set something for media players).
But what mason says, works with me, too. Have played a file in VLC, then opened Abrowser again and sound is played there.
So always start your day with some music...

I use 32 bit T7. Since the last upgrade, I have been having this problem too. But, I found that if I play a video in VLC first, and then go to view a video on abrowser, say at youtube, the sound then works. I have no idea as to why.