1 files changed, 7 insertions, 3 deletions
diff --git a/src/lib/UA.js b/src/lib/UA.js
index 0a751a4..1a1771a 100644
--- a/src/lib/UA.js
+++ b/src/lib/UA.js
@@ -2,7 +2,11 @@ var UA = {
   isMozilla: document.URL.startsWith("moz-"),
 }
 
-if (!UA.isMozilla && typeof chrome === "object" && !chrome.tabs && typeof exportFunction === "undefined") {
-  // content script shims
-  window.exportFunction = () => {};
+if (!UA.isMozilla) {
+  if (typeof chrome === "object" && !chrome.tabs && typeof exportFunction === "undefined") {
+    // content script shims
+    window.exportFunction = () => {};
+  }
+} else {
+  document.documentElement.classList.add("mozwebext");
 }