Facebook Tollbar is one of the most popular Firefox add-ons that tightly integrates your Facebook account with your web browser. You can search, upload and download photos, share pages that you are currently viewing, get messages and notifications directly from this toolbar.
Fishbowl (Desktop Verison of Facebook) allows you to personalize how you read your newsfeed, update the status, write comments, browse friend photos or upload their own, but with added functionality like dragging and dropping in new photos.
Use LiveUpload to upload your photos and videos quickly and easily through Windows Live Photo Gallery or Windows Live Movie Maker.
OutSync is a free Windows application that syncs photos of your Facebook friends with matching contacts in Microsoft Outlook. It allows you to select which contacts are updated. So you can update all contacts at once or just a few at a time. The main benefit of OutSync is for Windows Mobile users.
Fotobook is a WordPress plugin allows you to keep all your photo albums at one WordPress page by linking it to your Facebook account and importing all of them to WordPress. It makes use of Facebook’s API so importing your photos is a breeze.
Friendbar makes it easy to keep in touch with friends on Facebook and Twitter. It displays a running stream of text and photo updates from Facebook and Twitter right on the browser toolbar, and allows you to post updates and reply from the browser toolbar itself.
Wordbook is WordPress plugin designed to integrate Facebook in your blog and your blog into Facebook. Some of the features include Facebook gallery widget,blog posts appear on Facebook Mini-Feed, display almost anything from your Facebook account to your blog.
Integrates Facebook alerts into your Google Desktop application. Supports fluid resizing sidebar with internationalization support.