Firefox Quantum v67.0.2 - Windows 10 Unfortunately, I have encountered the following problem which appears to have started within the past two weeks or so. I am able to successfully log into the user authenticated website without difficulty and begin to download various files. However, I will suddenly encounter a "401" web page when I attempt to download a file - the 401 web page states that my accesss has been disconnected. I have found that if I refresh this 401 web page then select the browser's back button, I will be able to download the file. But, if I proceed to attempt to download other files, I may be successful but will usually encounter the same 401 web page when I attempt to download a subsequent file. As I indicated above, this problem is new to me, in that it appears to have started to occur in recent weeks. Additionally, sometimes when I am attempting to download a file, a login dialog box will appear center screen requesting my user name and password. The text that appears in this login dialog box states that the website that I am viewing is not requesting the login and will not be sent to the website that I am viewing, so I simply disregard the login dialog box and close it and repeat my attempt to download the file, which I am usually able to accomplish successfully. Based on the above information, do you have any idea what is going on with my login access? Might a recent update of Firefox account for this strange occurance? I have not made any changes to my computer or Firefox that would account for these strange occurances, and I most certainly do have antivirus and antimalware software active on my computer. However, I do not know if any of the new features associated with the recent Firefox updates or any configuration settings may be the source of this problem. Please advise. Thanks!