No Audio on Chromium when playing Youtube/Facebook Video

I have no problems with blockify muting the spotify ads after I installed Pulse Audio. But now since after I installed it, there is no audio through facebook/youtube and other websites. It happen after I installed all blockify's dependencies according to the github page here. pacman -S git python-pip gst-python pulseaudio alsa-utils pygtk python-dbus python-gobject python-docopt wmctrl