No, contrary to you and GP, the stable version of Firefox for Android (on the Google Play Store) supports all Firefox extensions, including ad blockers.
There was a short period in the switch-over from Fennec (old FF for Android) to Fenix (new FF for Android) when the stable version didn’t support all extensions, but this hasn’t been the case anymore for years now.
There was a short period in the switch-over from Fennec (old FF for Android) to Fenix (new FF for Android) when the stable version didn’t support all extensions, but this hasn’t been the case anymore for years now.