User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36 Steps to reproduce: Repro Steps are explained here: https://bugzilla.mozilla.org/show_bug.cgi?id=1122036 I would say the root cause of the issue is chrome.desktopCapture is not implemented in Firefox (https://bugzilla.mozilla.org/show_bug.cgi?id=1303919) The reason given in getUserMedia() should pop up alert asking for permissions. But the alert is not shown for an addon at all. Calling getUserMedia() from an addon will automatically get rejected. https://bugzilla.mozilla.org/show_bug.cgi?id=1007817 https://bugzilla.mozilla.org/show_bug.cgi?id=1122036 https://bugzilla.mozilla.org/show_bug.cgi?id=1363854 I am middle of developing an app which works smoothly in Firefox and Opera but errors out Firefox. Without this bug being fixed, no dev can write any app with screen capture on Firefox Actual results: Below Error: "stringBundle is undefined" Or: The permission to get video/audio is automatically rejected. Expected results: Should give handle to Video
Summary: WebExtensions: getUserMedia() is unusable in a addon → WebExtensions: getUserMedia() is unusable in an addon
Component: Untriaged → WebExtensions: Compatibility
Product: Firefox → Toolkit
You can't use getUserMedia() from a background or popup page, see bug 1278100 for an explanation and workaround. We should, however, make it fail properly instead of throwing an internal error when called from an invalid place.
Priority: -- → P5
See Also: → bug 1278100
Summary: WebExtensions: getUserMedia() is unusable in an addon → getUserMedia() should fail gracefully from background or popup pages
@andrew I did try using a tab instead of background but it auto rejects without asking the user to allow the action. The Video/Mic does show up a dialog box but not screen.
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