--- a/dom/media/tests/mochitest/mochitest.ini
+++ b/dom/media/tests/mochitest/mochitest.ini
@@ -52,17 +52,17 @@ skip-if = android_version == '18' || os 
 [test_getUserMedia_addtrack_removetrack_events.html]
 skip-if = os == 'linux' && debug # Bug 1389983
 [test_getUserMedia_basicAudio_loopback.html]
 skip-if = os == 'mac' || os == 'win' || toolkit == 'android' # Bug 1404995, no loopback devices on some platforms
 [test_getUserMedia_basicAudio.html]
 [test_getUserMedia_basicVideo.html]
 [test_getUserMedia_basicVideo_playAfterLoadedmetadata.html]
 [test_getUserMedia_basicScreenshare.html]
-skip-if = toolkit == 'android' # no screenshare on android
+skip-if = toolkit == 'android' || (webrender && toolkit == 'windows') # no screenshare on android; bug 1405083 permafail on webrender
 [test_getUserMedia_basicTabshare.html]
 skip-if = toolkit == 'android' # no windowshare on android
 [test_getUserMedia_basicWindowshare.html]
 skip-if = toolkit == 'android' # no windowshare on android
 [test_getUserMedia_basicVideoAudio.html]
 [test_getUserMedia_bug1223696.html]
 [test_getUserMedia_constraints.html]
 [test_getUserMedia_callbacks.html]