diff --git a/src-tauri/src/config_store.rs b/src-tauri/src/config_store.rs
index b963dbe..4fb929b 100644
--- a/src-tauri/src/config_store.rs
+++ b/src-tauri/src/config_store.rs
@@ -34,7 +34,7 @@ pub fn resolve_browser_configs(app: &AppHandle) -> Result<Vec<BrowserConfigEntry
             .map(|config| BrowserConfigEntry {
                 id: config.id,
                 source: BrowserConfigSource::Custom,
-                browser_family_id: None,
+                browser_family_id: config.browser_family_id.or(config.icon_key.clone()),
                 icon_key: config.icon_key,
                 name: config.name,
                 executable_path: config.executable_path,
@@ -61,6 +61,7 @@ pub fn create_custom_browser_config(
     });
     let executable_path = input.executable_path.trim();
     let user_data_path = input.user_data_path.trim();
+    let browser_family_id = infer_browser_family_id(icon_key.as_deref());
 
     if name.is_empty() {
         return Err("Name is required.".to_string());
@@ -77,6 +78,7 @@ pub fn create_custom_browser_config(
         id: generate_custom_config_id(),
         name: name.to_string(),
         icon_key,
+        browser_family_id,
         executable_path: executable_path.to_string(),
         user_data_path: user_data_path.to_string(),
     });
@@ -197,3 +199,12 @@ fn generate_custom_config_id() -> String {
         .unwrap_or(0);
     format!("custom-{timestamp}")
 }
+
+fn infer_browser_family_id(icon_key: Option<&str>) -> Option<String> {
+    match icon_key {
+        Some("chrome") => Some("chrome".to_string()),
+        Some("edge") => Some("edge".to_string()),
+        Some("brave") => Some("brave".to_string()),
+        _ => None,
+    }
+}
diff --git a/src-tauri/src/models.rs b/src-tauri/src/models.rs
index 98d2d55..8bd0db5 100644
--- a/src-tauri/src/models.rs
+++ b/src-tauri/src/models.rs
@@ -137,6 +137,8 @@ pub struct CustomBrowserConfigRecord {
     pub name: String,
     #[serde(default)]
     pub icon_key: Option<String>,
+    #[serde(default)]
+    pub browser_family_id: Option<String>,
     pub executable_path: String,
     pub user_data_path: String,
 }