У вашего броузера проблема в совместимости с HTML5
This is a video tutorial for installation of anaconda (Python 3.6) and OpenCV 3.3. Please subscribe for more tutorials. If you need anything specific related to Computer Vision, ML, AI mentions it in comments.
Important links:
Anaconda: https://repo.continuum.io/archive/Anaconda3-4.4.0-Windows-x86_64.exe
openCV whl : http://www.lfd.uci.edu/~gohlke/pythonlibs/
(make sure you download this file "opencv_python‑3.3.0+contrib‑cp36‑cp36m‑win_amd64.whl")
Credits: Saurabh Ghatnekar