Solusi Streaming / Flash Player Jalan di Opera Web Browser di Elementary OS

 1. Install via snapd (lambat banget buat start)

2. Install via deb
- wget -qO- https://deb.opera.com/archive.key | sudo apt-key add -
- echo "deb https://deb.opera.com/opera-stable/ stable non-free" | sudo tee -a /etc/apt/sources.list.d/opera-browser.list
- sudo apt-get update
- sudo apt-get install opera-stable

setelah itu install chromium 
sudo apt install chromium-browser

sudo cp -i /snap/chromium/current/usr/lib/chromium-browser/libffmpeg.so /usr/lib/x86_64-linux-gnu/opera/

selesai.....