Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多
封存

After installing a theme my minimize, maximize and close buttons appear as a solid-black box. How can I get them to appear again?

jdhunterae replied
jdhunterae

After installing and switching to a theme, the minimize, maximize, and close buttons at the top right turn into a solid black box. The buttons still perform as expected if I click in the appropriate area of the box, but the buttons are blacked out. If I restart in safe-mode, or switch the theme back to default, there is no issue and the buttons are back. I've tried this with several themes and they all have the same results.

Running Firefox 19 on Windows 8.

After installing and switching to a theme, the minimize, maximize, and close buttons at the top right turn into a solid black box. The buttons still perform as expected if I click in the appropriate area of the box, but the buttons are blacked out. If I restart in safe-mode, or switch the theme back to default, there is no issue and the buttons are back. I've tried this with several themes and they all have the same results. Running Firefox 19 on Windows 8.

所有回覆 (1)

While writing this question, Firefox was downloading the latest update for 20.0, but after restart with the new version, the issue is still persistent.