I can reproduce the issue on Nightly111.0a1 Windows10. STR 1. Disable Titlebar (by default) 2. Make sure sizemode is normal 3. To make the problem easily observable, Resize the window so that the bottom of the wallpaper is visible at least 100px. 4. Ctrl+N to open new window Actual results: The new window is smaller in height than the first window. Expected: Same height.
Bug 1813303 Comment 3 Edit History
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I can reproduce the issue on Nightly111.0a1 Windows10. STR 1. Disable Titlebar (by default) 2. Make sure sizemode is normal 3. To make the problem easily observable, Resize the window so that the bottom of the wallpaper is visible at least 100px. 4. Ctrl+N to open new window --- observe, The new window is smaller in height ---BUG! 5. Close the original window 6. Ctrl+N to open another new window --- observe, The new window is also smaller in height ---BUG! Actual results: The new window is smaller in height than the first window. Expected: Same height.