Cannot click tabs when mouse is at top of screen and window is maximized
Categories
(Firefox :: Tabbed Browser, defect)
Tracking
()
People
(Reporter: geoff, Unassigned)
Details
Attachments
(2 files)
firefox-145-tab-mouse-over-fail.png
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:145.0) Gecko/20100101 Firefox/145.0
Steps to reproduce:
- Put a maximized Firefox window on a 1920x1080 monitor.
- With the mouse at the top of the screen, try to use the mouse to interact with a tab. For example, try left-clicking to change tabs.
Alternative:
2. Press Alt to display the menu bar.
3. With the mouse at the top of the screen, try using the mouse to interact with the menu bar options.
Actual results:
The mouse cannot interact with the tab. Instead, when the mouse is at the top of the screen, all you can click is a thin gray bar that stretches across the entire screen. Left clicking does nothing, but left clicking and dragging unmaximizes and moves the window. Right-clicking opens a context menu with "Restore", "Minimize", and "Close" options, which apply to the window, not any tab. There are no mouseover effects either.
Alternative: The mouse cannot interact with the menu bar options.
Expected results:
Same behavior as Firefox 144. When the mouse is within the horizontal bounds of a tab and Firefox is maximized, mouse actions behave the same as if the mouse were positioned dead center of the tab. Firefox does not display a gray bar across the top of its window.
I have 3 monitors attached. Two are identical 1920x1080 with 100% scaling. One is 3840x2160 with 150% scaling. I do not experience this problem with versions of Firefox before 145. The problem affects both the 1080p monitors identically and does not affect the 4K monitor.
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Comment 4•11 months ago
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The Bugbug bot thinks this bug should belong to the 'Firefox::Tabbed Browser' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.
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Updated•11 months ago
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Description
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