Install Adobe Flash Player using "APT for Ubuntu 9.04". Refresh the Youtube page... there you go...
But this is not the case with Chromium and Ubuntu 14.04 combination. While you can easily play You Tube videos etc on other web browsers such as Firefox, Chrome etc, in Chromium you will see Adobe Flash player missing notice
Замените браузер Firefox на Chrome или Chromium. Adobe больше не поддерживает Flash для Linux, кроме как в плагине Pepper Flash для Chrome.
flash player not working on Ubuntu 14.04 with Chrome for Linux. 1. Google Chrome lost the up-to-date Flash Player. 3. Flash doesn't work in Chrome: “Restart Chrome to enable Adobe Flash Player”.
Как Установить Adobe Flash Player На Ubuntu 16.04 Для Opera.
Unlike Chromium, the similar Google Chrome browser includes Adobe Flash Player built-in.
Install Flash Player 10 Under Ubuntu Linux. Download Solaris UNIX Intel x86 / Sparc Adobe Flash players. I'm back.
В 2012 году компания Adobe объявила о том, что они больше не будут выпускать новые версии своего NPAPI (Firefox) и PPAPI (Chrome) плагина для Linux, будут
Previously, Ubuntu offered a package that would (to cut a long story short) download and extract the Flash player plugin from Google Chrome and pop it in to a directory where other apps could use it.