diff --git a/web/pdf_history.js b/web/pdf_history.js
index 5bdc17b92..3ca1df2cd 100644
--- a/web/pdf_history.js
+++ b/web/pdf_history.js
@@ -281,23 +281,10 @@ class PDFHistory {
     this._updateInternalState(destination, newState.uid);
 
     if (shouldReplace) {
-      if (typeof PDFJSDev !== 'undefined' &&
-          PDFJSDev.test('FIREFOX || MOZCENTRAL')) {
-        // Providing the third argument causes a SecurityError for file:// URLs.
-        window.history.replaceState(newState, '');
-      } else {
-        window.history.replaceState(newState, '', document.URL);
-      }
+      window.history.replaceState(newState, '');
     } else {
       this._maxUid = this._uid;
-
-      if (typeof PDFJSDev !== 'undefined' &&
-          PDFJSDev.test('FIREFOX || MOZCENTRAL')) {
-        // Providing the third argument causes a SecurityError for file:// URLs.
-        window.history.pushState(newState, '');
-      } else {
-        window.history.pushState(newState, '', document.URL);
-      }
+      window.history.pushState(newState, '');
     }
 
     if (typeof PDFJSDev !== 'undefined' && PDFJSDev.test('CHROME') &&