Closed issue by 666666t on void-packages repository

https://github.com/void-linux/void-packages/issues/28715

Description:
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### System

- Package: firefox-85.0.1_1

### Expected behavior
- [`firefox-wayland`](https://github.com/void-linux/void-packages/blob/master/srcpkgs/firefox/files/firefox-wayland) command script is (presumably) meant to set the `MOZ_ENABLE_WAYLAND=1` variable when calling firefox, to run as a native wayland program rather than under XWayland.

### Actual behavior
- Script does not specify the variable, instead containing the string `MOZ_ENABLE_WAYLAND=`, resulting in firefox still running under XWayland unless script is manually modified. 

### Steps to reproduce the behavior

`xbps-install -S firefox`
`firefox-wayland`