F-Secure DeepGuard is blocking Adobe Reader DC
I am using FireFox, Adobe Reader DC and AOL. An AOL email has a PDF attachment. When using Firefox to open AOL, I click on the PDF attachment in the email to view the PDF in Adobe I get the following message:
"There was an error opening this document. The file is already open or in use by another application".
If I disable DeepGuard I can open this PDF attachment with Adobe Reader DC.
Any help would be appreciated