Refresh Firefox Webpage Automatically with ReloadEvery

The ReloadEvery Firefox extension will reload web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via a drop down menu on the reload button. Once you’ve installed it and restarted Firefox, just head to Woot (or whatever page you want to auto-refresh), then click the little arrow next to the Refresh button and choose your desired interval:

Alternately, you can right-click anywhere on the page and choose the ReloadEvery menu. The extension works on a per-tab basis, meaning you can choose different refresh rates for different sites.

ReloadEvery [Mozilla Add-ons]