Among some bug fixes, you can now make use of a built-in browser, "Send and Archive" messages, filter specific folders and labels, clear your spam and trash bins and even set which accounts you'd like to show or hide dock badges for.

ENGADGET: Sparrow mail app for iOS hits version 1.1, Push support to follow 'with or without Apple'

"Ever since the launch of Timeline, people have had the ability to control what posts they want to show or hide on their own Timelines, and today we're extending that to other information they post, starting with the Facebook address, " the Facebook spokesperson added.

CNN: Facebook just switched your default e-mail address

If a person complained or clicked to hide a story from that person before, it may not show up.

FORBES: Facebook Clears The Air On News Feed, Promoted Posts

"These studies show that RSV is a 'hit and hide' virus, rather like HIV or some hepatitis viruses, " said Professor Peter Openshaw of Imperial College and one of those involved in the study.

BBC: RSV infects most babies within their first year of life