As we announced last year, Firefox plans to drop support for all NPAPI plugins, except Flash, in March 2017. These changes are part of our ongoing efforts to make browsing safer and faster without sacrificing the Web experiences our users love. Our engineering partnership has led to improvements in high-DPI support on Windows, enhanced sandboxing, and an accelerated Flash rendering pipeline that improves performance and stability.

We continue to work closely with Adobe to deliver the best possible Flash experience for our users. Firefox currently supports encrypted video playback using Adobe Primetime and Google Widevine as alternatives to plugin video. Websites that currently use Flash or Silverlight for video or games should plan on adopting HTML technologies as soon as possible. In 2017, Firefox will require click-to-activate approval from users before a website activates the Flash plugin for any content. We will make this change at the same time Firefox implements the equivalent HTML Intersection Observer API ( Firefox bug 1243846) and recommend that content producers currently using Flash to measure viewability adopt this new API as soon as it is available. This will improve Firefox performance and device battery life. Later this year, we plan to expand this list to include the use of Flash to check content viewability, a common practice to measure advertising. To minimize website compatibility problems, the changes are initially limited to a short, curated list of Flash content that can be replaced with HTML. This is expected to reduce Flash crashes and hangs by up to 10%. As websites have switched from Flash to other web technologies, the plugin crash rate in Firefox has dropped significantly:ДЇirefox will continue this trend by blocking specific Flash content invisible to users.

This includes audio/video playback and streaming capabilities, clipboard integration, fast 2D and 3D graphics, WebSocket networking, and microphone/camera access.

Over the past few years, Firefox has implemented Web APIs to replace functionality that was formerly provided only by plugins. These and future changes will bring Firefox users enhanced security, improved battery life, faster page load, and better browser responsiveness. Starting in August, Firefox will block certain Flash content that is not essential to the user experience, while continuing to support legacy Flash content. Mozilla and the Web as a whole have been taking steps to reduce the need for Flash content in everyday browsing. This is not a trade-off users should have to accept. But plugins often introduce stability, performance, and security issues for browsers. Browser plugins, especially Flash, have enabled some of our favorite experiences on the Web, including videos and interactive content.

Making firefox adobe plugin load faster