As predicted by researcher Dino Dai Zovi in these pages in January, 2010 turned out to be the year of the sandbox. The technology prevents attackers from using bugs in the browser or Reader to break out of that application and move to another app or the operating system itself. Google added a sandbox to its Chrome browser; Adobe released Reader X, which includes an integrated sandbox; and Google and Adobe teamed up to implement a sandboxed version of Flash in Chrome. Microsoft has had a limited sandbox, known as, in Internet Explorer for some time.
Source: https://threatpost.com/the-year-of-the-sandbox/91782/