Fix for Firefox users experiencing either scrolling or receipt image viewing issues in Concur:

in concur system updates
May 29th, 2015

The route of this problem is that the Concur screens show up as pop-ups in Firefox. To get pop-ups to appear in new tabs an add-on called Tab Mix Plus needs to be downloaded and can be found here:

https://addons.mozilla.org/en-US/firefox/addon/tab-mix-plus/

Once the user downloads and installs the program, they should go to the menu icon on the right in a Firefox screen; choose Options; In the horizontal menu at the top choose Tabs; click the Tab Mix Plus Options button at the top of the window; find the Java Script and Popup Restriction dropdown and choose Open all popups in tabs; click OK and OK.