diff --git a/testing/web-platform/meta/media-source/mediasource-endofstream.html.ini b/testing/web-platform/meta/media-source/mediasource-endofstream.html.ini
index f5e20a127dc1..ccef2ffe58c6 100644
--- a/testing/web-platform/meta/media-source/mediasource-endofstream.html.ini
+++ b/testing/web-platform/meta/media-source/mediasource-endofstream.html.ini
@@ -1,3 +1,8 @@
 [mediasource-endofstream.html]
   disabled:
     if os == "linux": https://bugzilla.mozilla.org/show_bug.cgi?id=1381449
+    if (os == "android") and debug: Frequently failing on geckoview
+  [MediaSource.endOfStream(): media element notified that it now has all of the media data]
+    disabled:
+      if (os == "android") and debug: Frequently failing on geckoview (Bug 1381449)
+
diff --git a/testing/web-platform/meta/media-source/mediasource-seek-during-pending-seek.html.ini b/testing/web-platform/meta/media-source/mediasource-seek-during-pending-seek.html.ini
index ab45a8e7b459..f329f6882c0d 100644
--- a/testing/web-platform/meta/media-source/mediasource-seek-during-pending-seek.html.ini
+++ b/testing/web-platform/meta/media-source/mediasource-seek-during-pending-seek.html.ini
@@ -1,4 +1,7 @@
 [mediasource-seek-during-pending-seek.html]
   disabled:
-    if (os == "android"): https://bugzilla.mozilla.org/show_bug.cgi?id=1499003 https://bugzilla.mozilla.org/show_bug.cgi?id=1563134
+    if (os == "android") and not e10s: https://bugzilla.mozilla.org/show_bug.cgi?id=1499003
   expected: ERROR
+  [Test seeking to a new location during a pending seek.]
+    disabled:
+      if (os == "android"): Frequently failing on geckoview (Bug 1563134), Bug 1553057