Unlike some other users, I'm a fan of the "Daylight" update to Firefox for Android in 2020. I think the new UI is slicker and easier than the competition, but from the beginning there was always room for improvement.
For me, my biggest concern with Daylight has always been the Add-On Compatibility, or lack-therof. I appreciate how Nightly allows me to curate my own Add-On Collection to try add-ons and use ones I like, but after a year and a half since Daylight launched I feel like expanded Add-On support shouldn't be limited to Nightly, especially since Nightly is, by nature, an unstable build.
I propose two solutions to improve Add-On support on Android.
1. Port over the current Custom Add-On Collection feature as-is to either Beta or Stable (this would include hiding it as a "secret setting" behind the Firefox Logo on the About Page).
2. Curate a larger collection of Add-Ons tested for compatibility on Android that could be given their own unique badging on the Add-Ons site, and in turn installable on any Android build of Firefox.
The former-most option would be the easiest to apply for the sake of those willing to use Nightly's fix, but the latter-most option would be more user friendly, improve user participation in the Android Browser's development (by allowing users to submit recommended extensions for Android similar to how the general Recommended badging works), and free up Nightly builds for testing Extension features that have yet to be perfected on Android.