Open Bug 1569490 Opened 6 years ago Updated 2 years ago

Windows Taskbar disappearing when moving full-sized Firefox Window to Main Display

Categories

(Core :: Widget: Win32, defect, P3)

69 Branch
defect

Tracking

()

UNCONFIRMED

People

(Reporter: angelkozlev, Unassigned)

Details

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0

Steps to reproduce:

I tried it in Firefox, Firefox Developer Edition and Nightly running on Windows 10 1903

  1. Make Firefox window full screen on secondary monitor
  2. Move window with key combination from secondary to main screen
  3. Attempt to access Windows taskbar

Actual results:

Windows Taskbar disappears

Expected results:

Windows Taskbar should be accessible

Testing with mozregression I found this to be the first build that it stopped working
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=c676b554c7bb&tochange=1b51c7bf1e05

Component: Untriaged → Widget: Win32
Product: Firefox → Core

The priority flag is not set for this bug.
:jimm, could you have a look please?

For more information, please visit auto_nag documentation.

Flags: needinfo?(jmathies)
Flags: needinfo?(jmathies)
Priority: -- → P3
Severity: normal → S3
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