I want to know which preference to enable flash on Geckoview? Or in general how to enable flash on geckoview android 4. This will toggle the flash plugin in firefox but that preference doesnt when I put it in Orfox.

Select Settings from the context menu and locate the Plugins preference here. You can make a configuration change however: Tap on the menu button when Firefox is open on your Android smartphone or tablet. As with its desktop version, it uses the Gecko layout engine, and supports features such as synchronization with Firefox Sync, blocking web trackers, and add-ons. There is a preference in firefox tPref('plugin.disable', false) Once installed it will pick up the Flash plugin automatically. Firefox for Android is a web browser developed by Mozilla for Android smartphones and tablet computers. Please install or enable Adobe Flash Player to view this content I followed the demo here and Orfox here Basically, I can build the app which uses geckoview to render flash content on Android 4.1 but not 4.4 (Kitkat). Recently I found an interesting thing is that Flash still works on firefox android 4.4 and there actually an firefox view(geckoView) that we can replace the webview.

Firefox flash plugin for android