I heard that the newest version of Firefox (which I have not upgraded to yet) has a feature that makes it easier to accidentally visit a website whose URL is on the clipboard. I googled to find out how to disable it, and [https://www.google.com/search?q=how%20to%20turn%20off%20clipboard%20autocompletion%20in%20newest%20mozilla%3F the Featured Snippet said "go to about:config and change clipboard.autocopy to false."] Sounded simple, so I did it, but subsequently found out that the article it quotes from is 10 years of age! My first question, then, is: what does changing "clipboard.autocopy" to false do if it doesn't turn off the brand-new feature? The second question is, how do I disable the new URL Paste Suggestion feature? Will setting "clipboard.autocopy" disable it? In particular, I want to make sure that the browser does '''not''' pre-load or pre-fetch the clipboard URL, and in fact, I wish to pop up a dialog box any time I do "paste and go." People often copy URLs from e-mails to research them before visiting them directly; jumping directly will increase the likelihood of visiting an imposter site.