diff --git a/frontend/package.json b/frontend/package.json
index bfdd321f7..174c2f0f0 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -26,6 +26,7 @@
   "browserslist": {
     "production": [
       ">0.2%",
+      "Firefox ESR",
       "not dead",
       "not op_mini all"
     ],