For years now, webcams in resorts around the world have allowed tourists to check their plans in advance. It's much more convenient to use an online camera in Chamonix-Mont Blanc than to arrive and find out whether it's a thaw or a blizzard.
Even if you're a thousand kilometers away from the Alpine beauty, Chamonix-Montblanc's live webcams are open 24 hours a day, allowing you to see the mountains. Every camera in the center of Chamonix-Montblanc or near the ski slopes will give you a chance to see the weather, the snow, other resort guests, the architecture and the beauty of the area.
Many resorts in France, and Chamonix-Mont Blanc is no exception, offer quite a few webcams online. You can view the Alps there, there and there.