Mozilla has announced that it plans to discontinue support for Flash in Firefox. Starting next month, Firefox will block Flash content "that is not essential to the user experience."
Also, starting sometime in 2017, the browser will require click-to-activate approval from users before a website activates the Flash plugin for any content. In a blogpost, the company writes:Mozilla and the Web as a whole have been taking steps to reduce the need for Flash content in everyday browsing. Over the past few years, Firefox has implemented Web APIs to replace functionality that was formerly provided only by plugins. This includes audio/video playback and streaming capabilities, clipboard integration, fast 2D and 3D graphics, WebSocket networking, and microphone/camera access. As websites have switched from Flash to other web technologies, the plugin crash rate in Firefox has dropped significantly. [...] We continue to work closely with Adobe to deliver the best possible Flash experience for our users.