{ -brand-name-firefox } themes let you change your browser’s appearance. They set the color scheme for browser menus and { -brand-name-firefox } system pages, and can even add a background image to your { -brand-name-firefox } toolbar.
您可以通过 { -brand-name-firefox } 主题来更改浏览器外观。这些主题会为浏览器菜单及 { -brand-name-firefox } 系统页面设置配色方案，还可以给 { -brand-name-firefox } 的工具栏添加背景图片。