The Mudcat Café TM
Thread #155664   Message #3663747
Posted By: GUEST,DaveRo
26-Sep-14 - 12:39 AM
Thread Name: Tech: pop up in new tab to update flash player
Subject: RE: Tech: pop up in new tab to update flash player
Firefox does not update Flash, nor suggest you do.

https://support.mozilla.org/en-US/kb/keep-flash-up-to-date-and-troubleshoot-problems

If you google you'll see there is malware that will do what you describe - including on Macs.