diff --git a/editor/ui/composer.js b/editor/ui/composer.js
index 43a0dfd2e542..2954e0586821 100644
--- a/editor/ui/composer.js
+++ b/editor/ui/composer.js
@@ -69,8 +69,8 @@ pref("editor.url_history.URL_7", "");
 pref("editor.url_history.URL_8", "");
 pref("editor.url_history.URL_9", "");
 
-localDefPref("editor.html_directory",               "C:\\My Documents");
-localDefPref("editor.image_directory",              "C:\\My Documents");
+localDefPref("editor.html_directory",               "");
+localDefPref("editor.image_directory",              "");
 localDefPref("editor.background_image",             "");
 
 pref("editor.last_pref_page",               0);
diff --git a/modules/libpref/src/init/editor.js b/modules/libpref/src/init/editor.js
index 43a0dfd2e542..2954e0586821 100644
--- a/modules/libpref/src/init/editor.js
+++ b/modules/libpref/src/init/editor.js
@@ -69,8 +69,8 @@ pref("editor.url_history.URL_7", "");
 pref("editor.url_history.URL_8", "");
 pref("editor.url_history.URL_9", "");
 
-localDefPref("editor.html_directory",               "C:\\My Documents");
-localDefPref("editor.image_directory",              "C:\\My Documents");
+localDefPref("editor.html_directory",               "");
+localDefPref("editor.image_directory",              "");
 localDefPref("editor.background_image",             "");
 
 pref("editor.last_pref_page",               0);