Switch to the tab and type .mp4 or m3u8 in the filter box. Refresh the page and press play on the video.
The biggest risk when searching for software like VidMoly is the proliferation of third-party bundlers. If you type "VidMoly download installer" into a generic search engine, the top results are often not the official site. They are "download portals" (e.g., Download.com, Softonic, or CNET) that wrap the original installer in an additional wrapper. vidmoly download installer