diff --git a/testing/web-platform/meta/mediacapture-streams/MediaStream-MediaElement-preload-none.https.html.ini b/testing/web-platform/meta/mediacapture-streams/MediaStream-MediaElement-preload-none.https.html.ini
index 5a1b1670b396..cbdfe32cd3c7 100644
--- a/testing/web-platform/meta/mediacapture-streams/MediaStream-MediaElement-preload-none.https.html.ini
+++ b/testing/web-platform/meta/mediacapture-streams/MediaStream-MediaElement-preload-none.https.html.ini
@@ -13,6 +13,8 @@
     if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86") and (bits == 32): TIMEOUT
     if debug and stylo and e10s and (os == "win") and (version == "6.1.7601") and (processor == "x86") and (bits == 32): TIMEOUT
   [Test that preload 'none' is ignored for MediaStream object URL used as src]
+    disabled:
+      if not stylo: https://bugzilla.mozilla.org/show_bug.cgi?id=1402123
     expected:
       if debug and not stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): TIMEOUT
       if debug and stylo and e10s and (os == "win") and (version == "10.0.15063") and (processor == "x86_64") and (bits == 64): TIMEOUT