Trang web này sẽ có chức năng hạn chế trong khi chúng tôi trải qua bảo trì để cải thiện trải nghiệm của bạn. Nếu một bài viết không giải quyết được vấn đề của bạn và bạn muốn đặt câu hỏi, chúng tôi có cộng đồng hỗ trợ của chúng tôi đang chờ để giúp bạn tại @FirefoxSupport trên Twitter và /r/firefox trên Reddit.

Tìm kiếm hỗ trợ

Tránh các lừa đảo về hỗ trợ. Chúng tôi sẽ không bao giờ yêu cầu bạn gọi hoặc nhắn tin đến số điện thoại hoặc chia sẻ thông tin cá nhân. Vui lòng báo cáo hoạt động đáng ngờ bằng cách sử dụng tùy chọn "Báo cáo lạm dụng".

Tìm hiểu thêm

Why doesn't Windows High Contrast work any longer since Firefox 29 and the Australia Theme?

  • 7 trả lời
  • 10 gặp vấn đề này
  • 7 lượt xem
  • Trả lời mới nhất được viết bởi guigs

more options

In firefox 28 and all versions before that when I had Windows High Contrast enabled firefox would also be in high contrast. It would make the webpages black and all text would become white. Due to my disability that made it alot easier for me to see and to browse. Since firefox 29 and the introduction of the australia theme however it seems like windows high contrast is no longer supported by firefox. For that reason I downgraded back to firefox 28 in order to be able to browse like I used to.

In firefox 28 and all versions before that when I had Windows High Contrast enabled firefox would also be in high contrast. It would make the webpages black and all text would become white. Due to my disability that made it alot easier for me to see and to browse. Since firefox 29 and the introduction of the australia theme however it seems like windows high contrast is no longer supported by firefox. For that reason I downgraded back to firefox 28 in order to be able to browse like I used to.

Giải pháp được chọn

There is a hidden value that needs to be changed in two places:

Go to Options > Content > Next to Fonts and Colors click "Advanced" > Uncheck allow sites to choose fonts and colors AND Click ok and go to Color.. on the Content page > Uncheck allow pages to choose own colors other than above. Make sure the background is black and font choice white.

On windows if you have high contrast mode on, please also try "use system colors"

Đọc câu trả lời này trong ngữ cảnh 👍 1

Tất cả các câu trả lời (7)

more options

I do hope I posted this in the right forum.

more options

This is a pluging for restore the old theme of firefox https://addons.mozilla.org/fr/firefox/addon/classicthemerestorer/

Được chỉnh sửa bởi FsZ vào

more options

That does indeed switch the theme back but it does not fix the high contrast issues. The websites are still not shown in high contrast. I think this is more of a programming issue.

more options

To be a bit more clear:

In the article above High Contrast themes are named as a Firefox feature. Well, that complete function is not working any longer after Firefox version 29. (With the complete overhaul of Firefox and the introduction of Australia).

Can someone please give me some feedback on this subject?

The text in the article says: Using a High Contrast Theme

Firefox automatically detects if you are using a High Contrast theme and displays everything in your high contrast color scheme. This overrides all other other browser or web page settings, and it affects the Firefox interface itself (all menus, windows, and dialog boxes) and the content of any web page you visit.


To use a High Contrast theme, go to Start Menu, select Control Panel, then Accessibility Options, finally Display and check the Use High Contrast option.

more options

Please also update to Firefox 30, there are some fixes for high contrast mode there.

more options

Tried firefox 30 as well but to no avail. The theme looks better in high contrast with firefox 30 but the high contrast feature is still not working. All websites keep looking like they look when you have high contrast turned off.

more options

Giải pháp được chọn

There is a hidden value that needs to be changed in two places:

Go to Options > Content > Next to Fonts and Colors click "Advanced" > Uncheck allow sites to choose fonts and colors AND Click ok and go to Color.. on the Content page > Uncheck allow pages to choose own colors other than above. Make sure the background is black and font choice white.

On windows if you have high contrast mode on, please also try "use system colors"