My current fix for the Conexant-Flow.Exe-Firefox issue
The problem for users of Windows laptops using the Conexant audio driver that makes Conexant’s Flow.exe program eat large amounts of CPU when the Firefox web browser is running has not been solved by “conventional” means.
And in order to be part of the “solution,” should one ever come, I filed a bug with Mozilla on the issue.
There have been many fixes proposed for this problem, which only seems to manifest itself on my HP Envy laptop while running Firefox.