When I open a PDF document in Safari and then go into Mission control, I see a window with different kinds of artifacts (e.g. horizontal black lines on a white background) and it's titled AdobePDFViewerNPAPI (Safari internet plug-in). This window is probably related to the Adobe Reader plug-in that Safari uses. Is there any way to have this window not show up in Mission Control?

2 Answers 2


The easiest way is to just use a different PDF plugin for Safari. There are instructions on how to do that here.


deleting the plugins from the library worked for me:


  • Welcome to Ask Different! Answers on Ask Different need to be more than just a link. It's okay to include a link, but please summarize or excerpt it in the answer. The idea is to make the answer stand alone. Please take a look at the FAQs for more info.
    – gentmatt
    Commented Sep 27, 2012 at 8:55

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .