如何使用Firebug调试JavaScript？-HowtodebugJavaScriptwithFirebug?

3  

Check if you have "support for script debugging" enabled in Console. Its disabled by default for performance reasons.

检查在控制台中是否启用了“支持脚本调试”。出于性能原因,默认情况下禁用它。

0  

I usually see this behavior if I forget to set a break point, or I have set the break points in places that don't get executed (so execution never stops, so the play button would never do anything).

如果我忘记设置断点,或者我在没有执行的地方设置了断点,那么我通常会看到这种行为(所以执行从不停止,所以播放按钮永远不会做任何事情)。

0  

You need to close all instances of firefox and reopen. Firefox has shared memory, so you cannot open a new page.

您需要关闭所有firefox实例并重新打开。 Firefox有共享内存,因此无法打开新页面。