When I 'Right-Click' on a Text Link (e.g. to 'Save Link As' or 'Copy Link Location' etc.) the Right-Click Menu that comes up includes options for either: a) EVERY context menu (including images and videos and more... similar to this http://prntscr.com/z0k15 ) b) Some of the relevant options, but not all (e.g. Save Link As ) ... in both cases, none of the options actually work, rendering the Right-Click Menu pretty useless. This doesn't happen when Right-Clicking on Video or Images though. They work as normal. So it's just Text Links. I've tried: - Refreshing Firefox - Restarting in Safe Mode - Disabling Extensions One by One None of it has worked. Any help would be massively apppreciated! Thanks in advance!