Affected versions

• WIndows 10, macOS 10.15;

Affected platforms

• 85.0a1(2020-12-10)

Steps to reproduce

1. Launch Firefox, access a webpage with multiple pages ex: link;
2. CTRL+P to trigger the print preview;
3. Press the TAB key until the page slider buttons are selected;

Expected result

• focus ring on the button;

Actual result

• with the white border, the focus ring appears as if it would have inner padding and not stick to the margin of the button;

Enhancement suggestions:

1. drop the white border when TAB selection is on the buttons;
2. white inner-padding for the selected button could be with the same colour as selection focus-ring (making it a 2px blue contour and not affect the visibility as much);

Regression range

• First bad: 2020-12-10
• Last good: 2020-12-09;
• Pushlog: URL;
• not a regression, introduced on bug 1654684;

Additional notes

• S4 as suggested severity;
• attached screenshot to illustrate the potential issue;
• this is a bit unfortunate as most prints would have the white background and from the distance a user would not see the white border of the buttons only after "studying it".

Bugbug thinks this bug is a defect, but please change it back in case of error.

Moving things to 88, cause we're mostly on Proton these days…