Update Dockerfile.txt (SeleniumHQ#673)

Author: diemol

NodeFirefox/Dockerfile.txt

@@ -3,7 +3,7 @@ USER root
 #=========
 # Firefox
 #=========
-ARG FIREFOX_VERSION=58.0.1
+ARG FIREFOX_VERSION=58.0.2
 RUN FIREFOX_DOWNLOAD_URL=$(if [ $FIREFOX_VERSION = "nightly" ]; then echo "https://download.mozilla.org/?product=firefox-nightly-latest-ssl&os=linux64&lang=en-US"; else echo "https://download-installer.cdn.mozilla.net/pub/firefox/releases/$FIREFOX_VERSION/linux-x86_64/en-US/firefox-$FIREFOX_VERSION.tar.bz2"; fi) \
   && apt-get update -qqy \
   && apt-get -qqy --no-install-recommends install firefox \