Strangely you cannot set browser window status bar using javascript (by setting window.status) in Firefox.奇怪的你不能设置浏览器窗口的状态栏中使用JavaScript （通过设置window.status ）在Firefox 。 There are two simple ways you can enable it.有两种简单的方式，您可以启用它。

Open about:config in browser and search for dom.持开放态度：配置在浏览器和搜索的DOM 。 disable_window_status_change . disable_window_status_change 。 Change it to false .将它更改为虚假的 。

Additionally in Firefox v1.0, this can be changed via “Tools → Options → Web Features → Enable JavaScript / Advanced → Allow scripts to change status bar text”此外，在Firefox 1.0版，这是可以改变的通过“工具→选项→ Web功能→启用JavaScript /高级→允许脚本来改变状态栏文本”

In Firefox v1.5, this can be changed via “Tools → Options → Content → Enable JavaScript / Advanced → Allow scripts to change status bar text”在Firefox v1.5 ，这是可以改变的通过“工具→选项→内容→启用JavaScript /高级→允许脚本来改变状态栏文本”

via MozillaZine; learnt the hard way.通过mozillazine ;据悉，该硬的方式。