Morning Coffee is really helpful firefox addon to Organize your favorite websites, This extension lets you organize websites by day and open them up simultaneously as part of your daily routine. This is really handy if you read sites that update on a regular schedule (like webcomics, weekly columns, etc.).
After installing the add-on, you’ll see a new coffee-cup icon just to the left of the Firefox address bar. Head to a site you want to designate as a favorite, click the little down arrow next to the coffee cup, and then mouse over Add to My Morning Coffee.
You can manage your picks–remove entries, change the display order, etc.
Download Morning Coffee Firefox Addon here