diff --git a/tests/content/firebug.html b/tests/content/firebug.html
index 37099e5932..f889e6e5ca 100644
--- a/tests/content/firebug.html
+++ b/tests/content/firebug.html
@@ -36,6 +36,7 @@
  */
 var testList = [
     {group: "lib/array",          uri: "lib/array/arrayInsert.js",                desc: "Verify Arr.arrayInsert() is working as expected" },
+    {group: "lib/array",          uri: "lib/array/isArrayLike.js",                desc: "Verify Arr.isArrayLike() is working as expected" },
     {group: "lib/array",          uri: "lib/array/unique.js",                     desc: "Verify Arr.unique() is working as expected" },
     {group: "lib/css",            uri: "lib/css/classes.js",                      desc: "Verify Css.setClass(), Css.hasClass() and Css.removeClass() are working as expected" },
     {group: "lib/search",         uri: "lib/search/literalRegExp.js",             desc: "Verify Search.LiteralRegExp() is working as expected" },
diff --git a/tests/content/lib/array/isArrayLike.js b/tests/content/lib/array/isArrayLike.js
new file mode 100644
index 0000000000..813d5ed80f
--- /dev/null
+++ b/tests/content/lib/array/isArrayLike.js
@@ -0,0 +1,50 @@
+function runTest()
+{
+    function object(name)
+    {
+        this.name = name;
+    }
+
+    object.prototype.toString = function()
+    {
+        return this.name;
+    }
+
+    // Simulates a jQuery object
+    function jQuery()
+    {
+        this.splice = function()
+        {
+            console.log("splice me!");
+        }
+
+        this.length = 0;
+    }
+
+    var tasks = new FBTest.TaskList();
+    tasks.push(verifyResult, true, ["a"]);
+    tasks.push(verifyResult, true, document.getElementsByClassName("test"));
+    tasks.push(verifyResult, true, document.querySelectorAll("div"));
+    tasks.push(verifyResult, true, document.body.classList);
+    tasks.push(verifyResult, true, new jQuery());
+    tasks.push(verifyResult, false, "a");
+    tasks.push(verifyResult, false, 1);
+    tasks.push(verifyResult, false, null);
+    tasks.push(verifyResult, false, undefined);
+    tasks.push(verifyResult, false, NaN);
+    tasks.push(verifyResult, false, Infinity);
+    tasks.push(verifyResult, false, -Infinity);
+    tasks.push(verifyResult, false, new object("Peter"));
+    tasks.push(verifyResult, false, {hello: "Hello Firebug user!"});
+
+    tasks.run(FBTest.testDone, 0);
+}
+
+function verifyResult(callback, expected, variable)
+{
+    var result = FW.FBL.isArrayLike(variable);
+    FBTest.compare(expected, result,
+        "Variable must" + (expected ? "" : " not") + " be an array-like object");
+
+    callback();
+}
\ No newline at end of file