add more compose files

firefox/.gitignore

@@ -1 +0,0 @@
-config

firefox/docker-compose.yml

@@ -1,5 +1,4 @@
 ---
-version: "2.1"
 services:
   firefox:
     image: lscr.io/linuxserver/firefox:latest
@@ -7,8 +6,8 @@ services:
     security_opt:
       - seccomp:unconfined # optional
     environment:
-      - PUID=1000
-      - PGID=1000
+      - PUID
+      - PGID
       - TZ=America/Detroit
     volumes:
       - ./config:/config