Adobe Flash Player not allowed

When trying to open a video I always get this message 'Adobe Flash Player not allowed". If I right click I get a message saying "allow this plug in". I click that and the video works. Sometimes the right click does nothing, so I cannot view the video.


Adblock Plus 1.4
Checker Plus for Gmail 12.0
Chrome to Mobil 1.0.0
Fastest Chrome Browse faster 7.0.3
Google Chrome to Phone Extension 2.3.1
Google Dictionary 3.0.17
Google Docs 0.5
Google Translate 1.2.4
Invisible Hand 3.8 31
Shopping Assistant
Solitaire 1.4.3
Thank you!