diff --git a/src/renderer/Components/Settings.tsx b/src/renderer/Components/Settings.tsx
index 5f939d2..9fcfd18 100644
--- a/src/renderer/Components/Settings.tsx
+++ b/src/renderer/Components/Settings.tsx
@@ -1273,7 +1273,6 @@ const Settings = (): ReactElement => {
                                     </div>
                                     <div className="toggleItem">
                                         <InputCheckbox
-                                            // todo impl
                                             checked={appSettings.readerSettings.focusChapterInList}
                                             className="noBG"
                                             onChange={(e) => {
diff --git a/src/renderer/MainImports.ts b/src/renderer/MainImports.ts
index 3e5d36f..e00a475 100644
--- a/src/renderer/MainImports.ts
+++ b/src/renderer/MainImports.ts
@@ -428,7 +428,7 @@ const formats = {
         },
     },
     files: {
-        list: [".zip", ".cbz", ".7z", ".rar", ".pdf", ".epub", ".xhtml", ".html", ".txt"],
+        list: [".zip", ".cbz", ".7z", ".cb7", ".rar", ".cbr", ".pdf", ".epub", ".xhtml", ".html", ".txt"],
         test: function (str: string) {
             return !!str && this.list.includes(path.extname(str).toLowerCase());
         },
@@ -444,7 +444,7 @@ const formats = {
         },
     },
     packedManga: {
-        list: [".zip", ".cbz", ".7z", ".rar"],
+        list: [".zip", ".cbz", ".7z", ".cb7", ".rar", ".cbr"],
         test: function (str: string) {
             return str && this.list.includes(path.extname(str).toLowerCase());
         },