I normally use Firefox with NoScript, add block plus and Norton toolbar with Identity safe. Running 32 bit Windows 10 anniversary edition, I have tried every work around (logging out nis, browser refreshes etc.) and have had an ongoing posts with NoScript support and was given suggestions that were tried. I always seeing the “Please wait” while logging into vault, the only thing that worked was turning NoScript off (unacceptable.) Through testing, browser refreshes, uninstalling and reinstalling browsers was this. First, I started off with Firefox 48.0.2, no results, then tried Firefox 49.0.b10. got the same result, updating Firefox 49 beta to 49.0. Through this testing the only combination of Firefox and all my add-ons working in harmony was using Firefox 50.oA2, I also had to stop Private browsing mode. I then tried the private browsing mode on versions 49 and 48 and the add-ons still will not work together.