User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:48.0) Gecko/20100101 Firefox/48.0 Build ID: 20160817112116 Steps to reproduce: When e10s is enabled, XUL browser element cannot display flash content Example: <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <window id="yourwindow" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" xmlns:html="http://www.w3.org/1999/xhtml" xmlns:h="http://www.w3.org/1999/xhtml"> <browser flex="1" src="https://helpx.adobe.com/flash-player.html" type="content" style="border: 1px red solid;"/> </window> Actual results: Open this XUL window when e10s is enabled. The flash part of the page is just grayed out Expected results: Flash content should have been rendered like it does on a borwser tab
Keywords: flashplayer, multiprocess
OS: Unspecified → All
Hardware: Unspecified → All
Benjamin, as Mozilla wants to remove XUL progressively, is it a bug to fix?
tracking-e10s: --- → ?
Component: Untriaged → Plug-ins
Product: Firefox → Core
We explicitly chose not to support this because it would cause deadlocks between the various processes.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → WONTFIX
So this suggests that no panel based add-on can load pages with Flash elements on them?
That's basically correct. You could possible create a remote browser and load your content+Flash in that.
`<browser src="http://www.google.com/" flex="1" remote="true" />` displays nothing. `<browser src="http://www.google.com/" flex="1" remote="false"/>` works as expected. Firefox 50.0a2; Mac OS. Am I doing something wrong?
:bsmedberg any comments on my previous post?
Please use NEEDINFO when asking me questions or I probably won't see them. I don't know much more about how exactly you'd embed a remote browser successfully. That's something you'd have to ask on a newsgroup, probably mozilla.dev.platform.
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