bugs on firefox, chromium is unaffected

we need further investigation, but have no time to do so.

webpack.config.js

@@ -1,20 +1,31 @@
 const path = require("path");
-const { experiments } = require("webpack");
-const { library } = require("webpack");
 const webpack = require("webpack");
+const TerserPlugin = require("terser-webpack-plugin");
 
 module.exports = {
   entry: "./index.js",
   output: {
     filename: "bundle.js",
-    path: path.resolve(__dirname, "dist"),
+    path: path.resolve(__dirname, "dist")
   },
   plugins: [
     new webpack.IgnorePlugin({
       checkResource(resource) {
         return /.*\/wordlists\/(?!english).*\.json/.test(resource);
-      },
+      }
     }),
+    new TerserPlugin({
+      terserOptions: {
+        mangle: {
+          reserved: [
+            "generateKeypair",
+            "generateMnemonic",
+            "getPairFromPrivate",
+            "Key"
+          ]
+        }
+      }
+    })
   ],
-  mode: "production",
+  mode: "production"
 };