* [mobx-state-tree v7.4.0](https://github.com/mobxjs/mobx-state-tree) – MobX-based state container library that adds structure, async actions, and efficient React reactivity with minimal boilerplate.

* [Reselect v5.3.0](https://github.com/reduxjs/reselect) – Memoized selector library for deriving and composing state from Redux or plain immutable JavaScript.

* [Immer v11.1.18](https://github.com/immerjs/immer) – Library for creating immutable state trees by modifying the current state.

* [flopflip v15.1.12](https://github.com/tdeekens/flopflip) – Feature toggling library for React applications with support for Redux and broadcasting systems.

* [Addons-frontend 2026.08.20](https://github.com/mozilla/addons-frontend) – Front-end infrastructure and code complementing the addons server.