This month Google, Microsoft, and Mozilla officially announced that they will deprecate RC4 support in early 2016. Google and Microsoft have not specified a date when RC4 support would end. However, Mozilla stated they would end support January 26, 2016, the same date as the release date of Firefox 44.
Although organizations have known about the Heartbleed bug since April of last year, John Matherly, founder of the IoT search engine Shodan, discovered that 200,000 devices are still vulnerable to Heartbleed. Over a quarter of the vulnerable devices are in the U.S.