
Stencil and its 700,000+ royalty-free images are now available for Firefox users, thanks to WebExtensions.
From enhanced security for users to cross-browser interoperability and long-term compatibility with Firefox—including compatibility with multiprocess Firefox—there are many reasons why WebExtensions are becoming the future of add-on development.
So it’s awesome to see so many developers already embracing WebExtensions. To date, there are more than 700 listed on AMO. In celebration of their efforts to modernize their add-ons, I wanted to share a few interesting ones I recently stumbled upon…
musicfm has an impressively vast and free music library, plus an intuitive layout for simple browsing. However, I’m more of a SoundCloud music consumer myself, so I was intrigued to find SCDL SoundCloud Downloader, which is built for downloading not just music files, but related artwork and other meta information.
The popular Chrome add-on Stencil is now available for Firefox, thanks to WebExtensions. It’s a diverse creativity tool that allows you to combine text and imagery in all sorts of imaginative ways.

musicfm offers unlimited free music and the ability to create your own playlists and online stations.
I’m enjoying Dark Purple YouTube Theme. I think video resolution reads better against a dark background.
Keepa is one of the finest Amazon price trackers out there that also supports various international versions of the online bazaar (UK, Germany, Japan, plus many others).
Googley Eyes elegantly informs you which sites you visit send information about you to Google.
Search Engine Ad Remover is a perfectly titled extension. But arguably even better than removing ads is replacing them with cat pics.
Thanks for your continued support as we push ahead with a new model of extension development. If you need help porting your add-on to WebExtensions, check out the resources we’ve compiled. If you’re interested in writing your first add-on with WebExtensions, here’s how to get started.
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