diff --git a/background.js b/background.js
index 0a803fc..d54943a 100644
--- a/background.js
+++ b/background.js
@@ -1411,7 +1411,10 @@ ext_api.runtime.onMessage.addListener(function (message, sender) {
     if (group) {
       let nofix_groups = ['###_ch_tamedia', '###_fi_alma_talent', '###_it_citynews', '###_nl_vmnmedia', '###_substack_custom', '###_uk_delinian'];
       if (!custom_flex_domains.includes(custom_domain)) {
-        custom_flex[group] = custom_flex[group] ? custom_flex[group].push(custom_domain) : [custom_domain];
+        if (custom_flex[group])
+          custom_flex[group].push(custom_domain);
+        else
+          custom_flex[group] = [custom_domain];
         custom_flex_domains.push(custom_domain);
         if (enabledSites.includes(group)) {
           if (!enabledSites.includes(custom_domain))
diff --git a/changelog.txt b/changelog.txt
index a252630..2302a86 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,6 +3,7 @@ Changelog Bypass Paywalls Clean - Firefox
 Updates (install signed xpi-file): https://gitlab.com/magnolia1234/bypass-paywalls-firefox-clean/-/releases
 
 Post-release
+Update popup (fix toggle for custom flex sites)
 
 * v3.4.3.0 (2023-11-19)
 Add Doorbraak.be
diff --git a/contentScript.js b/contentScript.js
index 464a994..5a11d06 100644
--- a/contentScript.js
+++ b/contentScript.js
@@ -2500,9 +2500,9 @@ else if (matchDomain(['lc.nl', 'dvhn.nl']) || document.querySelector('head > lin
   let paywall = document.querySelector('div.signupPlus, div.pw-wrapper');
   if (paywall && dompurify_loaded) {
     let intro = document.querySelector('div.startPayWall');
-    removeDOMElement(paywall, intro);
     let html = document.documentElement.outerHTML;
     if (html.includes('window.__NUXT__=')) {
+      removeDOMElement(paywall, intro);
       try {
         let json = html.split('window.__NUXT__=')[1].split('</script>')[0].trim();
         let url_nuxt = json.includes(',canonical:"') ? json.split(',canonical:"')[1].match(/\d+\.(html|ece)/)[0] : false;
diff --git a/custom/manifest.json b/custom/manifest.json
index b19c75b..a79badf 100644
--- a/custom/manifest.json
+++ b/custom/manifest.json
@@ -51,5 +51,5 @@
     "webRequestBlocking",
     "*://*/*"
   ],
-  "version": "3.4.3.0"
+  "version": "3.4.3.1"
 }
diff --git a/manifest.json b/manifest.json
index ff1f0b9..536a3e3 100644
--- a/manifest.json
+++ b/manifest.json
@@ -815,5 +815,5 @@
     "*://*.wyleex.com/*",
     "*://webcache.googleusercontent.com/*"
   ],
-  "version": "3.4.3.0"
+  "version": "3.4.3.1"
 }