How to Override Microphone Auto-adjustment in Chrome?

[Lasgalen]

Hello everyone,
I use Ubuntu 18.04, and the problem is with the microphone level while speaking through Facebook messenger or any other browser supported messenger. The mic keeps self-adjusting and the other party gets poor sound or none at all. I installed PulseAudio, it works well for Skype, but it's agonising to see the sliders jump back into the position I didn't mean for them to be in. A similar problem was discussed here:
https://apple.stackexchange.com/questions/336424/how-to-disable-auto-adjusting-of-mic-input-level-in-chrome-in-mac-os
The people found a solution for an earlier version of Chrome; my Chrome seems to lack the interface or I'm doing something wrong.

And another similar discussion here:
https://groups.google.com/forum/#!topic/discuss-webrtc/vfNKu-Osg0s

Are we really helpless in front of Google Leviathan?

[Keith]

Hello Lasgalen - and Welcome to the Forum.

Do you have this problem on other browsers such as Firefox?  It's worth trying others. 

Keith

[Lasgalen]

Hello Keith,
Thank you.
I used Firefox until very recently, and all was okay, but it stopped loading pages - that's another problem I can't fix.

[Keith]

It might be easier to fix Firefox by simply re-installing it.  You lose nothing as you are using Chrome at present. 
Have you kept your updates up-to-date? 

[Lasgalen]

I always update as prompted. Do you suggest re-installing Firefox?

[Keith]

Well, it's easy enough.  Have a look at https://askubuntu.com/questions/333411/updating-or-uninstalling-and-reinstalling-firefox-on-linux.

Might be an idea to backup your Bookmarks first, if they are important. 

Keith

[Lasgalen]

Thank you Keith!