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。

Learn More

userChrome.css and Firefox Developer Edition

  • 2 回覆
  • 1 有這個問題
  • 52 次檢視
  • 最近回覆由 MiltS

more options

Firefox Developer 80.0b7 (64-bit) Mac Catalina V 10.15.5

I've tried using the userChrome.css file to change the background color for the active tab. create chrome folder in profile folder create userChrome.css file and add: .tab-background[selected="true"] {

 background-color: #ffffff !important;
 background-image: none !important;

} Set toolkit.legacyUserProfileCustomizations.stylesheets to TRUE Reboot mac This does not take affect and the userChrome.css file is not visible in Style Editor.

What am I doing wrong? thanks Milton

所有回覆 (2)

more options

You can open the userChrome.css file in a Firefox tab to check if the file is a plain text file and not a file with RTF or other formatting code.

more options

Yes it opens in a tab. It is a text file.