It is an extension for refreshing your page for single page or a group of the page. Grizzly Ape creates it on July 6, 2009. It is free and easy to use. It is an open source and beautiful interface. You can also set a timer to reload or refresh your web page. .It also provides a user YouTube auto-playing stopper sometimes when you open a bunch of videos you want to watch they all playing at the same time then Auto Refresh by Grizzly Ape stop all of that for your kind. It specially designs for multiple platforms like Linux, Windows, and MAC. It works in Firefox. You can also install from the Mozilla Add-ons site. It also maintains your page setting.  It shows the last and next refresh time.