diff --git a/layout/tools/reftest/manifest.jsm b/layout/tools/reftest/manifest.jsm
index 5816f9856004..9905f020a170 100644
--- a/layout/tools/reftest/manifest.jsm
+++ b/layout/tools/reftest/manifest.jsm
@@ -464,6 +464,10 @@ function BuildConditionSandbox(aURL) {
 
     sandbox.is64Bit = xr.is64Bit;
 
+    // GeckoView is currently uniquely identified by "android + e10s" but
+    // we might want to make this condition more precise in the future.
+    sandbox.geckoview = (sandbox.Android && g.browserIsRemote);
+
     // Scrollbars that are semi-transparent. See bug 1169666.
     sandbox.transparentScrollbars = xr.widgetToolkit == "gtk3";