Normally with LastPass you can get LastPass to open a protected web site in a new tab, then populate the login fields, typically user name and password or secondly you can open the website login page, and select the Last Pass icon, either directly from the website login field or from the LastPass icon on the Firefox bar and select 'fill'. Now I sign into Lastpass (using the icon on the address bar), and the Lastpass dialogue box appears, instead of the dialogue box 'populating', it remains blank. Likewise for all the other options above. LastPass support have suggested using different browsers. Embarrassingly, I reluctantly installed EDGE, and it works normally! I don't want to use EDGE! Clearly something has changed?