Managed to fix my broken Firefox browser thanks to the instructions here https://support.mozilla.org/en-US/kb/install-flash-plugin-view-videos-animations-games.
On version 44 now.
Normal service has been resumed as soon as possible.
I suppose it had to happen. I did a major update of Centos 7 last week which downloaded megabytes of package updates. Since then, software updater disappeared, software disappeared, sound in Firefox stops after 12s.
For the record I am in 7.2.1511 and Gnome 3.14. I don’t know what they were before. After some searching I found a package to put back the gui for software updates. More searching and I yum installed gnome-software. Re-downloaded Firefox which says it is 44.0 but still complains it is out of date.
I mean, come on. How hard can it be to actually maintain a working home system???? After I ditched Apple, Centos was doing so well, meeting all my needs and now it’s broken or at best will take hours of fixing. What a crock of shit.