can't play videos on Quicktime on MacBook Pro
I am unable to play videos on Quicktime 10.3 that I have played previously. I am also unable to play videos on Facebook and Youtube. I have uninstalled and reinstalled Adobe Flash and have the up to date version. The problem with playing videos seems to have taken place after installing Google Chrome, but not sure if it is related. I have uninstalled Google Chrome and the problem persists. Thanks for your help with this.
MacBook Pro (Retina, 15-inch, Late 2013), OS X Mavericks (10.9.5), 2.6 GHz Intel Core i7