diff --git a/src/options/optionsCommon.js b/src/options/optionsCommon.js
index abfc306..99874e5 100644
--- a/src/options/optionsCommon.js
+++ b/src/options/optionsCommon.js
@@ -35,6 +35,9 @@
       case 'ccdarktheme_mode':
         return document.getElementById(opt).value || 'switch';
 
+      case 'interopthreadpage_mode':
+        return document.getElementById(opt).value || 'previous';
+
       default:
         console.warn('Unrecognized option: ' + opt);
         return undefined;
@@ -239,6 +242,24 @@
                 .appendChild(select);
             break;
 
+          case 'interopthreadpage_mode':
+            var select = document.createElement('select');
+            select.id = 'interopthreadpage_mode';
+
+            const threadPageModes = ['previous', 'next'];
+            for (const mode of threadPageModes) {
+              let modeOption = document.createElement('option');
+              modeOption.value = mode;
+              modeOption.textContent =
+                  chrome.i18n.getMessage('options_interopthreadpage_mode_' + mode);
+              if (items.interopthreadpage_mode == mode) modeOption.selected = true;
+              select.appendChild(modeOption);
+            }
+
+            document.getElementById('interopthreadpage_mode--container')
+                .appendChild(select);
+            break;
+
           default:
             console.warn('Unrecognized option: ' + opt);
             break;
diff --git a/src/options/optionsPage.json5 b/src/options/optionsPage.json5
index 0de4df5..a5c9ff5 100644
--- a/src/options/optionsPage.json5
+++ b/src/options/optionsPage.json5
@@ -43,6 +43,7 @@
         {codename: 'enhancedannouncementsdot'},
         {codename: 'repositionexpandthread', experimental: true},
         {codename: 'imagemaxheight'},
+        {codename: 'interopthreadpage'},
       ],
     },
   ],