Alternatively, you can re-install the plug-in using the instructions below '(Re-)installing the Adobe Flash Player'. Checking for updatesįollow these steps to check for updates to the Adobe Flash Player. Whatever the case is, this help page will guide you through the actions required to fix the problem.īecause the 'blocked plugin' message can be hidden by some screensavers, the solution provided here may also apply to Mac screensavers that stop working but show no errors. It is also possible you have never installed the required plug-in on your computer. In 99% of the cases, the plug-in in question is the Adobe Flash Player, and the solution is to update Flash to the latest version, as Apple blocks outdated versions for security reasons.
When you see a 'blocked plugin' error message on a black screen when a screensaver starts, this means a plug-in - a third-party program required by the screensaver - is not working.
