One more scenario that falls under the same category is when a Mac user goes to a website that relies on Adobe Flash Player to interact with the visitors. Incidentally, this can be a cross-browser issue and hold true for Chrome and Firefox as well. The file preview turns out to be a no-go in this case as the browser displays a black screen with the above-mentioned message in the center. For instance, the alert may occur when a user tries to open an email link in Safari leading to a PDF document. Most reports regarding this issue are associated with Adobe software, including Flash Player and Acrobat Reader. An error on Mac saying “ Blocked Plug-in” typically means that the system has prevented a specific plug-in from running. This is an important prerequisite for delivering a proper user experience, but with the caveat that these enhancements largely have a third-party nature and may become a source of security issues. Plug-ins are intended to make sure a system component, such as a web browser, supports certain features or types of content provided by websites and other modern electronic services. This article explains the rationale behind a blocked plug-in on Mac and provides a workaround for the error, including a way to remove the misbehaving app. Get rid of “Blocked Plug-in” error using Combo Cleaner removal tool.Get rid of “Blocked Plug-in” alert in web browser on Mac.Blocked plug-in error virus manual removal for Mac.
