Chrome 50 also brings support for declarative preload. The look of notifications can now be customized with timestamps and icons. Sites can now detect when a notification is closed by the user, resulting in better analytics and allowing for cross-device notification dismissal. Push notification payloads must be encrypted. This eliminates the final server check - the initial version relied on service workers to proactively fetch the information for a notification from the server, leading to problems when there were multiple messages in flight or when the device was on a poor network connection. While insecure versions of Firefox will continue to work on OS X 10.8 and earlier, using an up-to-date version of Firefox on a supported version of Mac OS will provide you with the best and safest. Chrome 50 allows sites to include notification data payloads with their push messages. Note: If you have Mac OS X 10.7 (Lion) or 10.6 (Snow Leopard), you will need to download OS X El Capitan before you can upgrade to the latest Mac OS. As announced in November 2015, Chrome now no longer supports Windows XP, Windows Vista, OS X 10.6 Snow Leopard, OS X 10.7 Lion, nor OS X 10.8 Mountain Lion. You can update to the latest version now using the browser's built-in silent updater, or download it directly from /chrome. An anonymous reader quotes a report from VentureBeat: Google today launched Chrome 50 for Windows, Mac, and Linux, adding the usual slew of developer features.
