Using this extension, simply right click on the tab and unload it. Doing this will keep the tab open in the browser, but without slowing down the browser. For prolific readers, procrastinators, and savers, the BarTab Lite X extension can be a real life saver. While it is for Firefox users only, there are many similar types of programs being created for other browsers as well. BarTab Lite X [Firebox Add-ons]
