This is the best summary I could come up with:

Firefox’s Android app will soon support an “open ecosystem of extensions,” developer Mozilla has announced, allowing users to customize the browser with a wide range of third-party addons.

An exact release date for the feature is yet to be announced, but in a blog post Mozilla’s Scott DeVaney said it should come before the end of the year.

Extension support on Firefox for Android technically goes back years, but compatibility was massively reduced when the app was rebuilt in 2020.

While it’s still technically possible to run any desktop Firefox extension with the Android app, you need to enable a debug menu to do so, and Mozilla warns that this option is designed for “developers and advanced users” and may “lead to unexpected outcomes.”

“There is so much creative potential to unlock within the mobile browser space,” Firefox’s director of engineering Giorgio Natili said in a statement.

“Mozilla wants to provide developers with the best support we can so they’re equipped and empowered to build modern mobile WebExtensions.” The company’s blog post includes a list of instructions for developers to ensure their extensions work as expected on Android, without falling prey to the operating system’s tendency to shut down resource-intensive processes.

I’m a bot and I’m open source!