Open Bug 1405228 Opened 7 years ago Updated 2 years ago

Top window border is not transparent like other borders

Categories

(Firefox :: Theme, defect, P5)

58 Branch
x86_64
Windows 10
defect

Tracking

()

Tracking Status
firefox58 --- wontfix
firefox59 --- wontfix

People

(Reporter: ke5trel, Unassigned)

References

Details

(Keywords: regression)

Attachments

(1 file)

Attached image inactive-top-border.png
The borders of inactive windows on Windows 10 are normally transparent but Nightly's top border is opaque. Also when the window becomes active the top border takes longer to change to the accent color than the other borders, sometimes it can take several 100ms and is quite noticeable.
This is a consequence of setting chromemargin="0,2,2,2" (so we can draw in the title bar) while not enabling glass. AFAIK we can't fix this in front-end code.
Priority: -- → P5
Blocks: 1496322
Summary: Top border of inactive window is not transparent like other borders → Top border is not transparent like other borders
Summary: Top border is not transparent like other borders → Top window border is not transparent like other borders
As written in bug 1499439, this bug is a lot more noticeable in Windows 10 1809.
I don't know why but this issue seems to be present only with default and dark theme. Light theme has a the "right" border on top.
Severity: normal → S3
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