Description: On dual monitors of different sizes menus appear in wrong place when opened on larger screen. On the large screen they appear too low down, i.e. vertically aligned with the top of the smaller screen. Steps to Reproduce: 1. Set up a dual monitor system with a large and a small screen 2. Open a document on large screen 3. Open a menu from the menu bar Actual Results: 4. Observe the vertical alignment of the menu panel; it is too far down the screen Expected Results: The menu should appear under the menu label in the menu bar Reproducible: Always User Profile Reset: No Additional Info: User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0
Created attachment 133725 [details] Screenshot of misaligned menu The screenshot shows my dual monitor setup. The monitors are aligned at the bottom. The menu on the right screen is aligned with the top of the left screen.
Just realized, this problem shows up in other applications too. Must be a window manager bug