I often visit a website who's online magazine is displayed with FlashPlayer. Lately with everyone phasing out support for FlashPlayer, I've only been able to view the magazine with a Windows machine running Internet Explorer. I'm now using Linux Mint with Firefox. I installed FlashPlayer buy running -> sudo apt-get install flashplayer-plugin installer. This worked fine and when I check it using FireFox Addons Manager, I can clearly see that ShockWave is installed and set to Always Active. Yet, when I visit the magazine website, in place of the magazine, it provides a link "Get Adobe Flash Player".

What gives?