diff --git a/api/SVGExternalResourcesRequired.json b/api/SVGExternalResourcesRequired.json
index 423c9f9a3fb435..44d7043f2c155d 100644
--- a/api/SVGExternalResourcesRequired.json
+++ b/api/SVGExternalResourcesRequired.json
@@ -14,10 +14,10 @@
             "version_added": null
           },
           "firefox": {
-            "version_added": true
+            "version_added": false
           },
           "firefox_android": {
-            "version_added": null
+            "version_added": false
           },
           "ie": {
             "version_added": null