Only those Add-ons which does not fall under Social Media category
Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!
When you find something on the web that you want to view later, put it in Pocket. It automatically syncs to your phone, tablet or computer so you can view it at any time, even without an internet connection.
With Add to Wunderlist you can now save your favorite content from the web straight into your Wunderlist.
Facebook Bookmarks lets you visit your Facebook Bookmarks by adding a special Facebook Button to your Toolbar.
Browse your bookmarks visually: create, edit, and manage preview images for all your bookmarks. Use bookmark images as a speed dial on newly opened tabs. Quickly transfer bookmarks, links and texts to your mobile phone using QR codes.
If you often share web page addresses (URLs) with others or save them in text file, bookmark, or copy to clipboard for your own reference, this extension will make your life easier!
AddInto Helps you to bookmark and share content on your favorite social destinations.
This addon will let you to save bookmark with position in web page, or with select text that allow you to open the page and automatically scroll to position, or select text.
Drag files to text boxes on any site to upload and share.