Refresh all tabs
When you checkmark the advanced option "Refresh all tabs", any time the current tab refreshes, it will also refresh all other tabs in the browser window. For example, suppose you have 3 tabs open. On the first tab, you checkmark the option "Refresh all tabs". Then you click "Start". When the first tab refreshes, it will also refresh tabs 2 and 3 at the same time. This feature is meant to be a time saver, allowing you to refresh multiple web pages, without having to explicitly turn refresh on for each URL.