Open Bug 2064173 Opened 2 days ago Updated 1 day ago

Alt-tabbing to a windowed browser window while in fullscreen does not present taskbar

Categories

(Core :: Widget: Win32, defect)

Product:
Core
Component:
Widget: Win32
Platform:
Unspecified
Windows
Type:
defect

Tracking

()

Tracking Flags:
Tracking Status
firefox-esr140 --- unaffected
firefox-esr153 --- unaffected
firefox154 --- wontfix
firefox155 --- fix-optional
firefox156 --- affected

People

(Reporter: handyman, Unassigned)

References

(Regression)

Details

(Keywords: regression)

STR:

  1. Open one (background) un-maximized window and one (foreground) fullscreen window.
  2. Alt-tab from the fullscreen to the other window.

Actual:
The window appears in front of the fullscreen window. No taskbar is shown.

Expected:
The window appears in front of the fullscreen window. The taskbar is shown.

This bug means that PIP windows expect special handling in nsWindow::TaskbarConcealer::UpdateAllState. See also bug 2055201 comment 6.

Set release status flags based on info from the regressing bug 2048501

status-firefox154: --- → affected
status-firefox155: --- → affected
status-firefox156: --- → affected
status-firefox-esr140: --- → unaffected
status-firefox-esr153: --- → unaffected
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