Created attachment 8831858 [details] non-e10s AncientChina Flash does not load.PNG Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:54.0) Gecko/20100101 Firefox/54.0 (20170130030205) Shockwave Flash Version: 126.96.36.199 STR 1. Launch Firefox Nightly in non-e10s mode 2. Navigate to https://airtightinteractive.com/demos/flash/stage3d/cubes/ 3. Navigate to http://www.flare3d.com/demos/AncientChina/ 4. Navigate to http://www.cnn.com/2016/10/10/us/weather-matthew/index.html 5. Verify all flash content loads AR: Flash content is not loading in non-e10s mode ER: Flash content should load in non-e10s mode Note: Visit the above pages in e10s mode (everything loads smoothly) dom.ipc.plugins.asyncdrawing.enabled = false does not solve the issue
Stefan, I missed triaging this when you filed it. Is this specific to content which uses Stage3D? And when you say "aunch Firefox Nightly in non-e10s mode" do you mean that you go into preferences, uncheck "Enable multi-process Nightly" and relaunch, or are you using the "New non-e10s window" button from the menu?
I meant that I've unchecked "Enable multi-process Nightly" and relaunch the browser. However now I cannot reproduce the issue on any of the listed pages, may be because of the Jim fixes or because of the new Flash update to 188.8.131.52. I will mark the bug as Resolved:WFM.