If you’re looking for an excellent way to save articles and pages on the Web so that you can refer to them in the future, Read It Later is for you. When you’re on a page that you want to save, click the small icon to the right of the Firefox address bar. You can then go back and read the item whenever you want, via the Firefox add-on, from the Web itself, or on another computer or mobile device with a Read It Later add-on.
To read saved articles and pages, you click a Read It Later icon that’s separate from the one you use to save the pages. There’s a chance that the icon won’t initially appear, however. To make it show up in Firefox 4, click the orange Firefox button at the upper-left corner of the screen, select Options, Toolbar layout, and then drag the Read It Later icon to the Firefox toolbar.