Once this feature is enabled, you're given a simple form where you can upload your own Firefox header and footer as well as change the text and accent color.

一旦这种功能启动了，你就会收到一个简单的表格，在这个表格上你可以上传你自己的Firefox浏览器标题和页脚就像改变文本和重点的颜色那样。

youdao

Now the header is set to a height of 200 pixels, features text that is very large (about 250% of the base font size) and displays a bright yellow color.

现在页眉已经设置到了200像素的高度，显示的文本非常大，(大概是基本的字体大小的百分之250)而且显示了一个明亮的黄色。

youdao

Now the header is set to a height of 200 pixels, features text that is very large (about 250% of the base font size) and displays a bright yellow color.

现在页眉已经设置到了200像素的高度，显示的文本非常大，(大概是基本的字体大小的百分之250)而且显示了一个明亮的黄色。

youdao