Install latest firefox and get reattach support

Dockerfile

@@ -6,22 +6,23 @@ ENV DEBIAN_FRONTEND noninteractive
 
 COPY AptSources /etc/apt/sources.list.d/
 
-ENV FIREFOXVERSION 46.0+build5-0ubuntu0.14.04.2
-
 RUN useradd -m firefox; \
     echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | debconf-set-selections; \
     apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886; \
-    apt-get update; \
-    apt-get install -y --no-install-recommends  firefox=$FIREFOXVERSION \
-                                                dbus-x11 \
+    apt-get update
+
+RUN apt-get install -y --no-install-recommends  dbus-x11 \
                                                 adobe-flashplugin \
                                                 libxext-dev \
                                                 libxrender-dev \
                                                 libxtst-dev \
                                                 oracle-java8-installer \
-                                                oracle-java8-set-default; \
+                                                oracle-java8-set-default
+
+RUN apt-get install -y --no-install-recommends  firefox; \
     rm -rf /var/lib/apt/lists/*
 
 COPY start-firefox.sh /tmp/
+RUN chmod 0755 /tmp/start-firefox.sh 
 
 ENTRYPOINT ["/tmp/start-firefox.sh"]

start.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+if [ $# -gt 0 ]
+then
+  COMMAND=$1
+  if [ "${COMMAND}" != "fresh" ]
+  then
+    echo "Invalid command. Usage: start.sh {fresh}"
+    echo
+    echo "    fresh:     Starts a brand new Firefox by deleting the container"
+    exit 1
+  fi
+
+  if [ "${COMMAND}" == "fresh" ]
+  then
+    docker rm firefox
+  fi
+fi
+
+docker run \
+  -v /tmp/.X11-unix:/tmp/.X11-unix \
+  -v /dev/snd:/dev/snd \
+  -e uid=$(id -u) \
+  -e gid=$(id -g) \
+  -e DISPLAY=unix$DISPLAY \
+  --name firefox \
+  firefox
+
+if [ $? -eq 125 ]
+then
+  echo "Container already exists... reattaching..."
+  echo
+  docker start firefox
+  docker attach firefox
+fi