Upgrade Firefox patch level to 68.0.2

Author: elgalu

Dockerfile

@@ -608,7 +608,7 @@ ENV FF_LANG="en-US" \
 
 #--- For Selenium 3
 # Layer size: big: 108.2 MB
-ARG FF_VER="68.0.1"
+ARG FF_VER="68.0.2"
 
 ENV FF_COMP="firefox-${FF_VER}.tar.bz2"
 ENV FF_URL="${FF_BASE_URL}/${FF_INNER_PATH}/${FF_VER}/${FF_PLATFORM}/${FF_LANG}/${FF_COMP}"