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Type: Question
Author: Rain tait
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I have apple mac and recently I have a problem with watching videos on youtube. I always received an error message youtube blocked plug in? I have installed latest flash player but exists same problem? Please help me to solve this problem?

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# Comment Id: 118193

If you have the ClickToFlash extension installed, that can prevent Flash based video from streaming. Safari > Preferences > Extensions

It can also be installed as a plugin in /Library/Internet-Plug-Ins.

Try uninstalling the currently installed Flash plugin (required for most YouTube content) then reinstall new >

From your Safari menu bar top of your screen click Safari > Preferences then select the Advanced tab.

Select:  Show Develop menu in menu bar

Now from the menu bar click Develop > Empty Caches

# Comment Id: 155322

If you are certain that you have already installed the latest version of Flash, do the following:
1. Go to System Preferences > Flash Player > Advanced.
2. Click Check Now.
3. Quit everything then reopen your browser.
Another solution is by doing the following:
1. Go to Macintosh HD > Library > Internet Plugins > Disabled Plugins.
2. Delete all references to Flash or Shockwave.
3. Check if there are Flash-related programs with versions that are older than the current date. You can check by referring to the Date Created sort field.  If there's any, delete them.