Over time, Google Chrome has achieved a reputation for being one of the fastest and most secure browsers. Chrome attributes much of it’s security due to the sandboxing model, which ensures that each tab runs in a separate process and cannot interfere with each other.
Google Chrome has gone the extra step to ensure that one of the most vulnerable software, Adobe Flash, gets constantly updated with bundling and auto-updating the Flash Player automatically. Extending this further, with the latest dev channel editions, Chrome also sandboxes Adobe Flash content. Chrome developers state that Chrome is the first browser under Windows XP which sandboxes Adobe Flash content and hopes this will protect users again most common malware.
For whatever reason, if you want to disable Flash sandboxing, add –disable-flash-sandbox as a command line parameter to your Chrome shortcut and you’re set.