Firefox has become a very popular development platform and it's no surprise that some of the hundreds of developer-built extensions are using third party APIs like those listed here. As of now you can see 12 Firefox mashups listed here at PW. Some worth checking-out include:
- Shareaholic: The most recent addition to our listings, this Firefox extension allows you to submit the webpage you are viewing to digg, del.icio.us, Facebook, and other places. It also tells you whether the webpage you are on has been dugg and commented on, and how many times it has been saved on del.icio.us.
- FireUploader: This is a Firefox extension which allows you to upload, and download photos,files and videos using a user friendly FTP like interface. In this version Flickr, Picasa, Box.net and Youtube are supported.
- A couple of extensions use web service storage APIs like the ones we profiled yesterday to make file storage straight from FireFox simpler like the S3Fox Organizer that's similar to the FTP interface that lists local folders in the left panel and Amazon S3 buckets, files and folders in the right panel
- BlueOrganizer: Handy extension that uses a lot of open APIs. Concisely described by Michael Calore of Wired: "Turns your right mouse button into a jumping-off point that leads to dozens of web services. Right-click on a word, a product, a company, a person or a link anywhere on the web and the add-on will give you a context-sensitive menu full of ways to learn more about and do more with whatever term you're interested in." (And one of our earliest ProgrammableWeb sponsors)
- BumbleSearch: Another extension to integrate the web more directly into your browsing experience using 6+ APIs including the BBC API and the Technorati API.
- PhishTank SiteChecker: Checks the current website you are on against the PhishTank database. Blocks the page if it is a known phish. Available as an extension for Seamonkey, Firefox, Flock, Mozilla and IE and Opera as a greasemonkey script.
If you're aware of other Firefox extensions using third-party APIs you can let us know in the comments here or at our Add a Link page.