pcie预取 不预取
Firefox has a spooky feature called “Prefetching” that downloads pages that it thinks you are going to click on. (note: this is a good excuse for how those pages ended up in your history). It’s also a waste of CPU and bandwidth that slows Firefox down.
Firefox具有一个称为“预取”的怪异功能，它可以下载您认为会单击的页面。 (注意：这是这些页面最终进入您的历史记录的一个很好的借口)。 这也浪费了CPU和带宽，从而降低了Firefox的运行速度。
To turn off this behavior, type about:config into the address bar, and then type the following into the Filter bar:
要关闭此行为，请在地址栏中键入about：config ，然后在“过滤器”栏中键入以下内容：
network.prefetch-next
network.prefetch-next
Just double-click the item in the list to change it to false.
只需双击列表中的项目将其更改为false即可 。
翻译自: https://www.howtogeek.com/howto/internet/firefox/quick-tip-turn-off-prefetching-in-firefox/
pcie预取 不预取