Add-on support for Firefox Preview mobile browser

Mozilla Developers published plan for implementing support for add-ons in a mobile browser Firefox Preview (Fenix), which is being developed to replace the Firefox edition for the Android platform. The new browser is based on the GeckoView engine and a set of Mozilla Android Components libraries, and does not initially provide the WebExtensions API for developing add-ons. In the first quarter of 2020, this deficiency is planned to be eliminated and tools for connecting add-ons will appear in GeckoView/Firefox Preview, providing functionality sufficient to support add-ons from recommended list.

Source: opennet.ru