If you are posting form that machine then either it is an old Fx49 or your browser is providing the wrong UAS as the forum software is detecting it as * ''User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0'' You do not list your add-ons so maybe you have an extension that is switching that. Or maybe it indicates a malware or adware issue. if you paste your information from the ''Troubleshooting Information Page'' in to a reply it may help determine what is happening. That is a long list. If it contains print related information edit that out as it is not relevant. ---------- To find the correct solution to your problem, we need some more non-personal information from you. Please do the following: # Use ONE of these methods to open the Firefox Troubleshooting Information page: #* Click the menu button [[Image:New Fx Menu]], click on help [[Image:Help-29]] and select ''Troubleshooting Information''. #* Type '''about:support''' into the Firefox address bar and press the enter key. # At the top of the Troubleshooting Information page that comes up, you should see a button that says "Copy text to clipboard". Click it. #Now, go back to your forum post, right-click in the reply box and select '''Paste''' from the context menu (or else click inside the reply box and press the Ctrl+V keys) to paste all the information you copied into the forum post. If you need further information about the Troubleshooting information page, please read the article [[Use the Troubleshooting Information page to help fix Firefox issues]]. Thanks in advance for your help!