[Affected versions]:

Firefox 96.0a1 (2021-11-23) (64-bit)

[Affected platforms]:

Windows 10 x64

[Steps to reproduce]:

1. Set High Contrast White (Right-click -> Personalize -> Colors -> High Contrast Settings).
2. Launch Firefox with a new profile.
3. Make sure that option "System theme" is enabled on Add-ons and themes
4. Add Duckduckgo addon on Firefox
5. Type something in awesome bar and click Enter.

[Expected result]:

Duckduckgo search bar is properly displayed.

[Actual result]:

Duckduckgo search bar is NOT properly displayed. Please see attachment

The severity of this issue might be S4.

this may or not additional info. but since 94.0.2 update, The duckduckgo privacy add-on has been entirely removed from my browser, all default search engines are back, after i disabled them (or so called removed) defaulted to google.

This is MAJOR. Removing privacy aware add-on is one huge thing, but restoring all the tracking search engines is another. I'll be filing my own bug report, but as of first apperances and experiences, this seems a wilful action.

(In reply to Rob N from comment #2)

this may or not additional info. but since 94.0.2 update, The duckduckgo privacy add-on has been entirely removed from my browser, all default search engines are back, after i disabled them (or so called removed) defaulted to google.

This is MAJOR. Removing privacy aware add-on is one huge thing, but restoring all the tracking search engines is another. I'll be filing my own bug report, but as of first apperances and experiences, this seems a wilful action.

I don't have permission to edit or remove my comments. Can somebody remove the text:

"The duckduckgo privacy add-on has been entirely removed from my browser."
"Removing privacy aware add-on is one huge thing, but restoring all the tracking search engines is another. I'll be filing my own bug report, but as of first apperances and experiences, this seems a wilful action.

and replace it with:

"restoring all the removed search engines is something else. and defaulting to google search is very very naughty. "

Hi Rob, thanks for this report.

EDIT: Originally thought this was a webcompat issue, now I'm not so sure... I can't find any glaring style differences between edge and ff, except our box models are slightly different:
In firefox, the form element has a 0.8px border with a 42.4px height. In edge, the form element has a 1px border with a 42px height.
In both browsers, the style rules say "border:1px;" and "height:42px", so I'm not sure why firefox gets different numbers.
Might also be a red herring 🤷‍♀️

:emilio could you take a look at this?

This is not a layout issue. They have a taller input than the container, and for we're painting a background even though they specify background: none, because background-color: revert goes back to the UA sheet and chooses the field background-color.

We revert for background-color: transparent, see this comment for context.

So I guess we should figure out how does Edge behave for test-cases like bug 1625036, and consider changing this, but otherwise this is by design to prevent contrast issues.

I believe this is effectively a dupe of bug 1666059.