1334791 - The colour of the caption on highlighted or focused buttons changes to white

Status: UNCONFIRMED

(Core :: Graphics, defect, P3)

Description

[Martin Rapavý]

Attachment: firefox-50-51.png

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.68 Safari/537.36 Vivaldi/1.7.735.11

Steps to reproduce:

Display a dialog box with buttons. Until version 50.0.1, everything was as expected; in version 51, when a dialog box button is focused or highlighted with the pointing cursor over it, the colour of the button caption changes to white.

The top half of the attached image depicts the behaviour in Firefox version 50.0.1, the bottom half depicts the behaviour in Firefox versions 51.0 and 51.0.1.

The first dialog boxes in each half of the picture depict the original dialog on initiating a download, with the right button focused;
the second dialog boxes in both halves of the picture depict the situation when the pointing cursor hovers over the left button;
the third dialog boxes in both halves of the picture depict the situation when the left button is focused and the pointing cursor hovers over the right button;
the fourth dialog boxes in both halves of the picture depict the situation when the pointing cursor is over the left button and the primary button is pressed down.


Actual results:

The colour of the caption on highlighted or focused dialog box buttons changed from black to white.


Expected results:

The colour of the caption on highlighted or focused dialog box buttons should not have changed from black to white.

Comment 1

[Martin Rapavý]

This unexpected behaviour is already present in the 1st beta version of Firefox 51.