altered behavior opening hyperlink after F37 upgrade

I use a mate/compiz desktop environment. Typically I have 6 workspaces available with 3 to dedicated tasks. WS#1 is my primary terminal windows. WS#2 is firefox and WS#3 is thunderbird and calendar. Sometimes I will highlight a web URL and right click to get an action menu. To open the link I select "open link address". Pre-F37 behavior: Firefox remains in WS#2, the link is opened in a new tab in Firefox, and my working environment is switched to WS#2 (the one with Firefox). Post-F37 Upgrade behavior: the link is opened in a new tab in Firefox and the firefox application is moved from WS#2 to my current working environment (typically WS#1). I can't figure out which if any setting in firefox, mate, or compiz might be affecting this behavior. Ideas? Jon -- Jon H. LaBadie jonfu(a)jgcomp.com