Understanding Cookies and Their Role in Browsing On the opposite side of the coin, cookies are tiny data snippets stored by websites in your browser.

Little did I know, it’s easier to correct this problem than you think—if you have the right web browser. Here’s how to delete autocomplete address bar suggestions in the “big four” browsers.

To enable JavaScript, go into the Settings app on your iPhone, click "Safari," then "Advanced," and swipe the JavaScript button to the right so it appears green. Here's a full breakdown with pictures.