First, read the English article below.

Tap the Firefox app icon, which resembles an orange fox wrapped around a blue globe. It's at the top of the Firefox screen. Type in about:config and then tap Search or ⏎ Return in the keyboard. If there's any text in the search bar, remove it before typing in about:config. You'll find this below the search bar at the top of the screen. Type in dom.disable_open_during_load and wait for the dom.disable_open_during_load option to appear. Tap the dom.disable_open_during_load section to expand it. You should see the pop-up blocker's status (which should be "true") listed on the left side of the screen. If the status says "false" instead, your Firefox browser is already blocking pop-ups. It's in the bottom-right corner of the pop-up blocker's section. Doing so will change the pop-up blocker's status from "true" to "false", signifying that the pop-up blocker is enabled. Even with the pop-up blocker enabled, not all pop-ups will be blocked. 

Now, please write a short abstract for it in Chinese. Abstract:
打开火狐浏览器。 点按火狐浏览器顶端的搜索栏。 前往配置页面。 点按“搜索”文本框。 搜索弹出式窗口拦截器。 选择弹出式窗口拦截器。 点按切换。