Hi everyone I thought I'd post something to give you a bit of tech advice.
You may know that flash is being 86ed by chrome and chromium browsers. blocking chrome's auto update is a real hard task. and honestly if my employer didn't demand I use it to access their websoftware, then I would neveer have installed any variation of chrome. it's spyware plain and simple. I don't use it for anything other than work. when I'm off work, clear cache clear cookies maybe restart the machine and use firefox 51.0 .
thats my suggestion, see, flashplayer still works in FF51.0 you can still install this and refuse all updates. it works with all content on the internet except maybe patreon. I suggest downgrading, if you don't need chrome, then uninstall it and move to a downgraded firefox to keep flash installed.