1458257 - 1 pixel bar of transparency across the window below the buffer at the top of the screen

Status: RESOLVED DUPLICATE of bug 1447312

(Firefox :: Untriaged, defect)

Description

[Sam]

Attachment: firefox transparency shown here approximatly half way down the image, accross the entire window.

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
Build ID: 20180427210249

Steps to reproduce:

* Windows 7
* using aero transparency

Most visable with a dark theme and dark web page (and a colourful desktop background). Shows a pixel thick horizontal line of transparency under the search header, similar to the transparency in the window header using transparency in the windows 7 aero theme.

The desktop background (or any underlying windows) show through the pixel gap accros the entire window, with exception to the vertical scroll bar on the right.


Actual results:

The layer underneath firefox is visible in the pixel gap.


Expected results:

The underlying layer should not be visible here.