I recently learn about Omnivore thanks to this post and it’s amazing, it’s the only Read Later extension I’ve known that has support for Android and it’s very good!

To install the addon you need to create a collection on the Mozilla Addons page and use Firefox Beta or Nightly, here’s more information

The only “negative” is that you need to create an account to sync between your devices, it doesn’t have an offline mode, although I created an account using a temporary email and it worked.

Thanks to ThePJN@sopuli.xyz for commenting on the addon!