Since updating my Windows 10 machine to use Firefox Quantum, currently on 57.0.1 but has been an issue ever since updating to the beta and now running the latest, I get bizarre resolution issues. My main screen (laptop) is 3840 x 2160 with Scale at 250% and my screens are at 1920 x 1080 with scale at 100%. When I click on my lastpass manager on one of the screens I get weird resolution in that box. It is not just in LastPass, when I get a login prompt it is also much bigger than it should be. Doesn't happen to any of the actual Firefox menu's though. If I drag the window back to my laptop screen I can use the plugin properly with correct resolution. I didn't have this issue in the previous version of Firefox. Any help or ideas appreciated.