diff --git a/platform/firefox/manifest.json b/platform/firefox/manifest.json
index 72af30e..ddb1a37 100644
--- a/platform/firefox/manifest.json
+++ b/platform/firefox/manifest.json
@@ -1,5 +1,5 @@
 {
-    "applications": {
+    "browser_specific_settings": {
         "gecko": {
             "id": "uMatrix@raymondhill.net",
             "strict_min_version": "56.0a1"