Some sites uses infinite scrolling and may unload content to load the new one to avoid overloading the user's browser. Twitter, for example, when logged in, have this and it is proven by scrolling down, copy the text of the tweet, scroll away from it far enough, then CTRL+F and paste the text you copied and it wouldn't find it since the tweet you copied the text is unloaded. This happens on chrome but not on firefox for some reason. Testing this feature [View Page Info] -> [Media], I noticed that the log does not update but rather displays the loaded content at only the time when the user makes this window appear. It does not update if the page changes. I am suggesting that the list automatically updates (can be as a checkbox option) after the user made the window appear, and also persist the loaded URLs (also a checkbox option) so that they don't disappear when they unload. Another suggestion is the [Inspect Element] -> [Network]: enable the user to copy all the URLs on the list, currently, I can only copy one at a time and is annoying, especially for those in the realm of combating malvertising and tech support scams. I could try copying the whole thing, but that would include all the other columns, which results a nasty result when pasted.