Created attachment 8948167 [details] bug.gif OS -Windows 10, 64 Bit Build ID - 20180203100135 User Agent - Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 Steps to reproduce : 1. Open Firefox Nightly 60.0a1 2. Then from the initial position, make the Firefox windows little-bit smaller Actual Result : You will see that there is a extra rectangular portion visible at the top left corner of the Firefox window which was not visible when the window was fit to the monitor Expected Result : The rectangular portion should not be there.
Hi Mohammad and thanks for reporting this! However, this is the intended behavior for the tab strip in Firefox Quantum, as you can see in the following bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1369786 If you want to have some drag area on the left side of the tab strip when maximizing the Firefox window, you can add flexible space from the Customization page. Must note that in this case, you'll have both the default rectangular portion and the flexible space displayed when minimizing the window.
Status: NEW → RESOLVED
Last Resolved: 16 days ago
Resolution: --- → INVALID
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