work around profile creation issues in a recent Firefox versions with an ugly hack

files/start.sh

@@ -3,13 +3,6 @@ set -e
 COMMAND="$1"
 echo "$COMMAND"
 
-# If no profile ...
-if [ ! -d "$HOME/.mozilla" ]; then
-  # create the default Firefox profile and put some settings there
-  firefox -CreateProfile default
-  mv $HOME/user.js `find $HOME/.mozilla/firefox -type d | grep .default`
-fi
-
 OPENVPN_CONF='/etc/openvpn/openvpn.conf'
 if [ -f "$OPENVPN_CONF" ]; then
   "$HOME/start-openvpn-blocking.sh" "$OPENVPN_CONF"
@@ -31,5 +24,24 @@ if [ ! -z ${ASSERT_COUNTRY+x} ]; then
   fi
 fi
 
-# Start firefox
+# If no profile ...
+if [ $COMMAND == "firefox" ]; then
+  # create the default Firefox profile and put some settings there
+  firefox &
+  FIREFOX_PID=$!
+  # Since some recent Firefox version, calling CreateProfile and copying
+  # user.js stopped working on the first use for reasons I could not find on
+  # Google and do not frankly care about. This is the workaround
+  set +e
+  while [ `find $HOME/.mozilla/firefox -type f | grep prefs.js | wc -l` == "0" ];
+  do
+    echo "... waiting for Firefox to start the first time"
+    sleep 1
+  done
+  set -e
+  echo "killing Firefox and copying settings"
+  kill $FIREFOX_PID
+  mv $HOME/user.js `find $HOME/.mozilla/firefox -maxdepth 1 -type d | grep .default-release`
+fi
+
 $COMMAND

run.sh

@@ -6,6 +6,7 @@ docker run -ti --rm -e DISPLAY \
   -v `pwd`/openvpn:/etc/openvpn \
   -v `pwd`/shared:/home/user/Downloads \
   -e ASSERT_COUNTRY \
+  --name docker-vpn-browser-container \
   --dns 1.1.1.1 \
   docker-vpn-browser \
   "$@"