diff --git a/content/install-hook-userstyles.js b/content/install-hook-userstyles.js
index c9002c23..2eb9aca2 100644
--- a/content/install-hook-userstyles.js
+++ b/content/install-hook-userstyles.js
@@ -280,7 +280,8 @@ document.documentElement.appendChild(document.createElement('script')).text = '(
     document.currentScript.remove();
     document.addEventListener('stylusFixBuggyUSOsettings', function _({detail}) {
       document.removeEventListener('stylusFixBuggyUSOsettings', _);
-      settings = /\?/.test(detail) && new URLSearchParams(new URL(detail).search);
+      // TODO: remove .replace(/^\?/, '') when minimum_chrome_version >= 52 (https://crbug.com/601425)
+      settings = /\?/.test(detail) && new URLSearchParams(new URL(detail).search.replace(/^\?/, ''));
       if (!settings) {
         Response.prototype.json = originalResponseJson;
       }
diff --git a/edit/edit.js b/edit/edit.js
index 0fb746c5..b8070f42 100644
--- a/edit/edit.js
+++ b/edit/edit.js
@@ -1336,7 +1336,8 @@ function beautify(event) {
 }
 
 function initStyleData() {
-  const params = new URLSearchParams(location.search);
+  // TODO: remove .replace(/^\?/, '') when minimum_chrome_version >= 52 (https://crbug.com/601425)
+  const params = new URLSearchParams(location.search.replace(/^\?/, ''));
   const id = params.get('id');
   const createEmptyStyle = () => ({
     id: null,
diff --git a/install-usercss/install-usercss.js b/install-usercss/install-usercss.js
index ede62830..13a7739c 100644
--- a/install-usercss/install-usercss.js
+++ b/install-usercss/install-usercss.js
@@ -3,7 +3,8 @@
 'use strict';
 
 (() => {
-  const params = new URLSearchParams(location.search);
+  // TODO: remove .replace(/^\?/, '') when minimum_chrome_version >= 52 (https://crbug.com/601425)
+  const params = new URLSearchParams(location.search.replace(/^\?/, ''));
   let liveReload = false;
   let installed = false;
 
diff --git a/manage/filters.js b/manage/filters.js
index 088abd90..d7282e7f 100644
--- a/manage/filters.js
+++ b/manage/filters.js
@@ -8,7 +8,8 @@ const filtersSelector = {
   numTotal: 0,
 };
 
-const urlFilterParam = new URLSearchParams(location.search).get('url');
+// TODO: remove .replace(/^\?/, '') when minimum_chrome_version >= 52 (https://crbug.com/601425)
+const urlFilterParam = new URLSearchParams(location.search.replace(/^\?/, '')).get('url');
 if (location.search) {
   history.replaceState(0, document.title, location.origin + location.pathname);
 }