Read It Later Firefox Extension
The Read It Later Firefox extension allows you to save pages of interest to read later. It eliminates cluttering of bookmarks with sites that are merely of a one-time interest.
Add to Firefox 
One Click Saving
Read It Later adds a button in the address bar. Clicking the icon automatically adds the current page to your list in one click. That's it.
Offline Reading
If you want to do some reading while away from an internet connection, on the plane or train, let Read It Later download your pages before disconnecting. Even when you lose your connection, you'll still be able to access all of your pages.
Stay in Sync
The best part about Read It Later? Your list goes everywhere you do.You can access your list from multiple computers and even non-Firefox browsers.
Read It Later even remembers your position in each article, so you can start reading on your computer, get up, grab your phone and pick up exactly where you left off.
Google Reader Integration
If you use Google Reader to manage your RSS feeds, you’ll now find the familiar Read It Later save button right next to the Google Reader star. You can now save directly to your reading list from Google Reader!
Text View
Convert any page to an optimized text-only view.Read It Later can extract the content out of your articles and present them in a clean, easy to read, and consistent way to read.
Click to Save Mode
Fly through your personalized homepages, news aggregators, and social media sites by switching on ‘Click to Save’ mode. Push Alt + M (customizable) and any link you click won’t be followed through, instead it will be added to your reading list.
Edit, Tag, Organize
It happens to the best of us. Sometimes there is just too much to read. After a while, your list might be in need of some organization.Easily modify any entry in your list.
Add tags to categorize items into different groups and browse through your tags like folders.
Bookmark or Share when done
When you are done reading, you can share your pages on any number of popular bookmarking services (including just regular old Firefox bookmarks).
