1. Install [Firefox Nightly for android](https://play.google.com/store/apps/details?id=org.mozilla.fenix) or Install [Mull (version with removed Mozilla telemetry from fdroid)](https://f-droid.org/packages/us.spotco.fennec_dos/)
2. [Follow these instructions from the Mozilla website](https://blog.mozilla.org/addons/2020/09/29/expanded-extension-support-in-firefox-for-android-nightly/)
OR
TL;DR: Settings → About Firefox Nightly → Tap on the Firefox logo 5 times
to enable Custom Add-on collections
3. In the “Custom Add-on collection” setting which is now available, enter the following details and tap “OK”:
13844640
Android-Collection
[Image reference here](https://i.imgur.com/6Nyxi0a.png)
4. You’ll now be able to install Tweak New Twitter via the Add-ons page.
[Image Reference here](https://i.imgur.com/dFGlYIW.png)
5. Open mobile.twitter.com and use the “Install” option in Firefox Nightly’s main menu, you’ll have a configurable (via Firefox Nightly’s Add-ons settings), user-respectful Twitter app on your phone.
I copied and edited the write up from the Dev of Tweak for twitter. [Github](https://github.com/insin/tweak-new-twitter)
I am not the Dev. Hope this helps someone.