diff --git a/content_scripts/saveload.js b/content_scripts/saveload.js
index 0be7322..1632f0d 100644
--- a/content_scripts/saveload.js
+++ b/content_scripts/saveload.js
@@ -16,15 +16,11 @@
     setTimeout(checkIfReady, 200);
   }
 
-  const expressionExport = document.createElement("div");
-  expressionExport.id = "EXPORTEXPRESSION";
-  expressionExport.style.display = "none";
   const expressionImport = document.createElement("div");
   expressionImport.id = "IMPORTEXPRESSION";
   expressionImport.style.display = "none";
 
   document.body.appendChild(expressionImport);
-  document.body.appendChild(expressionExport);
 
   function download(filename, textInput) {
     var element = document.createElement('a');
@@ -82,24 +78,18 @@
   function loadExpr(json) {
     const expressions = JSON.stringify(json);
     var scriptTag = document.createElement('script');
-    scriptTag.src = chrome.extension.getURL('inject_scripts/load.js');
+    scriptTag.src = browser.runtime.getURL('inject_scripts/load.js');
     scriptTag.onload = function () { this.parentNode.removeChild(this); };
     document.getElementById("IMPORTEXPRESSION").textContent = expressions;
     document.body.append(scriptTag);
   }
 
   function saveExpr() {
-    var scriptTag = document.createElement('script');
+    const expressions = window.wrappedJSObject.Calc.getExpressions();
     const graphTitle = document.querySelector(".align-left-container").querySelector(".dcg-variable-title").textContent + ".json";
-    scriptTag.src = chrome.extension.getURL('inject_scripts/save.js');
-    scriptTag.onload = function () { this.parentNode.removeChild(this); };
-    document.body.append(scriptTag);
+    const expressionsString = JSON.stringify(expressions);
+    download(graphTitle, expressionsString);
 
-    document.addEventListener("updatedExpression", () => {
-      const expressionsString = document.getElementById("EXPORTEXPRESSION").textContent;
-      download(graphTitle, expressionsString);
-      document.getElementById("EXPORTEXPRESSION").textContent = "";
-    });
   }
 
 })();
diff --git a/inject_scripts/save.js b/inject_scripts/save.js
deleted file mode 100644
index 26e3c22..0000000
--- a/inject_scripts/save.js
+++ /dev/null
@@ -1,7 +0,0 @@
-(function () {
-    const expressions = Calc.getExpressions();
-    const expressionBox = document.getElementById("EXPORTEXPRESSION");
-    expressionBox.textContent = JSON.stringify(expressions);
-    const updateEvent = new Event("updatedExpression");
-    document.dispatchEvent(updateEvent);
-})();
diff --git a/manifest.json b/manifest.json
index 772399a..8fd125b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -17,11 +17,9 @@
       ]
     }
   ],
-  "host_permissions": [
-    "https://www.desmos.com/"
-  ],
   "web_accessible_resources": [
-    "inject_scripts/*.js"
+    "inject_scripts/load.js",
+    "inject_scripts/save.js"
   ],
   "browser_action": {
     "default_icon": "icons/icon-32.png",