diff --git a/xpcom/tests/unit/test_bug476919.js b/xpcom/tests/unit/test_bug476919.js
index 54c050b06ffd..5ba64758c7ca 100644
--- a/xpcom/tests/unit/test_bug476919.js
+++ b/xpcom/tests/unit/test_bug476919.js
@@ -1,30 +1,25 @@
 /* global __LOCATION__ */
 
 function run_test() {
-  // skip this test on Windows
-  if (mozinfo.os != "win") {
-    var testDir = __LOCATION__.parent;
-    // create a test file, then symlink it, then check that we think it's a symlink
-    var targetFile = testDir.clone();
-    targetFile.append("target.txt");
-    if (!targetFile.exists()) {
-      targetFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o644);
-    }
-
-    var link = testDir.clone();
-    link.append("link");
-    if (link.exists()) {
-      link.remove(false);
-    }
-
-    var ln = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
-    ln.initWithPath("/bin/ln");
-    var process = Cc["@mozilla.org/process/util;1"].createInstance(
-      Ci.nsIProcess
-    );
-    process.init(ln);
-    var args = ["-s", targetFile.path, link.path];
-    process.run(true, args, args.length);
-    Assert.ok(link.isSymlink());
+  var testDir = __LOCATION__.parent;
+  // create a test file, then symlink it, then check that we think it's a symlink
+  var targetFile = testDir.clone();
+  targetFile.append("target.txt");
+  if (!targetFile.exists()) {
+    targetFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o644);
   }
+
+  var link = testDir.clone();
+  link.append("link");
+  if (link.exists()) {
+    link.remove(false);
+  }
+
+  var ln = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+  ln.initWithPath("/bin/ln");
+  var process = Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
+  process.init(ln);
+  var args = ["-s", targetFile.path, link.path];
+  process.run(true, args, args.length);
+  Assert.ok(link.isSymlink());
 }
diff --git a/xpcom/tests/unit/test_symlinks.js b/xpcom/tests/unit/test_symlinks.js
index bcd149ebb2db..fb89a1c43769 100644
--- a/xpcom/tests/unit/test_symlinks.js
+++ b/xpcom/tests/unit/test_symlinks.js
@@ -134,11 +134,6 @@ function testSymLinks(testDir, relative) {
 }
 
 function run_test() {
-  // Skip this test on Windows
-  if (mozinfo.os == "win") {
-    return;
-  }
-
   var testDir = CWD;
   testDir.append("test_symlinks");
 
diff --git a/xpcom/tests/unit/xpcshell.ini b/xpcom/tests/unit/xpcshell.ini
index 10bedbf6a9f6..9001f55380a5 100644
--- a/xpcom/tests/unit/xpcshell.ini
+++ b/xpcom/tests/unit/xpcshell.ini
@@ -15,6 +15,8 @@ generated-files =
 [test_bug364285-1.js]
 [test_bug374754.js]
 [test_bug476919.js]
+# Creating a symlink requires admin or developer mode on Windows.
+skip-if = os == "win"
 # Bug 676998: test fails consistently on Android
 fail-if = os == "android"
 [test_bug478086.js]
@@ -47,6 +49,8 @@ skip-if = os == "android"
 [test_seek_multiplex.js]
 [test_stringstream.js]
 [test_symlinks.js]
+# Creating a symlink requires admin or developer mode on Windows.
+skip-if = os == "win"
 # Bug 676998: test fails consistently on Android
 fail-if = os == "android"
 [test_systemInfo.js]