Adobe updated various pages related to Flash last month. Not only will the support end at the end of the year but the availability will be gone as they will remove the download links and it will be fully removed from other automatic systems like Windows update. On top of that there will be no way to use the flash player to run any content after the end date that unless you are a enterprise customer with a custom support plan. On some site it was speculated mentioned that there is a built in time lock or a server query that will happen after that date and will block the content. This would mean that the Slim browser will not work either unless you use a cracked/tampered version of the Flash runtime.