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diff --git a/dom/quota/test/xpcshell/caching/test_groupMismatch.js b/dom/quota/test/xpcshell/caching/test_groupMismatch.js
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index 0000000000..3f8e843798
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+++ b/dom/quota/test/xpcshell/caching/test_groupMismatch.js
@@ -0,0 +1,45 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/**
+ * This test is mainly to verify that the group loaded from the origin table
+ * gets updated (if necessary) before quota initialization for the given origin.
+ */
+
+async function testSteps() {
+  const principal = getPrincipal("https://foo.bar.mozilla-iot.org");
+  const originUsage = 100;
+
+  info("Clearing");
+
+  let request = clear();
+  await requestFinished(request);
+
+  info("Installing package");
+
+  // The profile contains one initialized origin directory with simple database
+  // data, a script for origin initialization and the storage database:
+  // - storage/default/https+++foo.bar.mozilla-iot.org
+  // - create_db.js
+  // - storage.sqlite
+  // The file create_db.js in the package was run locally, specifically it was
+  // temporarily added to xpcshell.ini and then executed:
+  //   mach xpcshell-test --interactive dom/quota/test/xpcshell/create_db.js
+  // Note: to make it become the profile in the test, additional manual steps
+  // are needed.
+  // 1. Manually change the group and accessed values in the origin table in
+  //    storage.sqlite by running this SQL statement:
+  //    UPDATE origin SET group_ = 'mozilla-iot.org', accessed = 0
+  // 2. Manually change the group in .metadata-v2 from "bar.mozilla-iot.org" to
+  //    "mozilla-iot.org".
+  // 3. Remove the folder "storage/temporary".
+  // 4. Remove the file "storage/ls-archive.sqlite".
+  installPackage("groupMismatch_profile");
+
+  request = getOriginUsage(principal, /* fromMemory */ true);
+  await requestFinished(request);
+
+  is(request.result.usage, originUsage, "Correct origin usage");
+}