Pinboard Pin by Citole

Pinboard Pin is a modern web extension for pinning pages on Pinboard with Firefox.

Pinboard is a fast, no-nonsense bookmarking site for people who value privacy and speed. Note that while the Pinboard Pin extension is provided by its author as free and open source software, Pinboard is a separate, paid service and you need to sign up for an account in order to use it. The author of Pinboard Pin is not affiliated with the provider of the Pinboard service. For any questions regarding the Pinboard service itself, please contact the Pinboard support.

This extension pretty much replicates the functionality of the Pinboard Plus extension that has been created for the Chrome browser, but it has been rewritten from scratch to support Firefox using the modern Angular framework instead of a mix of the older AngularJS, jQuery and Underscore libraries used by Pinboard Plus. This rewrite was also intended as a proof-of-concept that modern Angular is a viable platform for building web extensions.