diff --git a/browser/browser.go b/browser/browser.go
index c8bc7b7c..e433c578 100644
--- a/browser/browser.go
+++ b/browser/browser.go
@@ -65,13 +65,13 @@ func pickChromium(name, profile string) []Browser {
 		if !fileutil.IsDirExists(filepath.Clean(profile)) {
 			slog.Error("find browser failed, profile folder does not exist", "browser", c.name)
 		}
-		chromiumList, err := chromium.New(c.name, c.storage, profile, c.dataTypes)
+		chromes, err := chromium.New(c.name, c.storage, profile, c.dataTypes)
 		if err != nil {
 			slog.Error("new chromium error", "err", err)
 		}
-		for _, b := range chromiumList {
-			slog.Warn("find browser success", "browser", b.Name())
-			browsers = append(browsers, b)
+		for _, chrome := range chromes {
+			slog.Warn("find browser success", "browser", chrome.Name())
+			browsers = append(browsers, chrome)
 		}
 	}
 	return browsers
diff --git a/browser/chromium/chromium.go b/browser/chromium/chromium.go
index 748cd0b2..c66c5b7b 100644
--- a/browser/chromium/chromium.go
+++ b/browser/chromium/chromium.go
@@ -4,6 +4,7 @@ import (
 	"io/fs"
 	"log/slog"
 	"path/filepath"
+	"slices"
 	"strings"
 
 	"github.com/moond4rk/hackbrowserdata/browserdata"
@@ -50,12 +51,16 @@ func (c *Chromium) Name() string {
 }
 
 func (c *Chromium) BrowsingData(isFullExport bool) (*browserdata.BrowserData, error) {
-	items := c.dataTypes
+	// delete chromiumKey from dataTypes, doesn't need to export key
+	dataTypes := slices.DeleteFunc(c.dataTypes, func(i types.DataType) bool {
+		return i == types.ChromiumKey
+	})
+
 	if !isFullExport {
-		items = types.FilterSensitiveItems(c.dataTypes)
+		dataTypes = types.FilterSensitiveItems(c.dataTypes)
 	}
 
-	data := browserdata.New(items)
+	data := browserdata.New(dataTypes)
 
 	if err := c.copyItemToLocal(); err != nil {
 		return nil, err
@@ -107,10 +112,10 @@ func (c *Chromium) userDataTypePaths(profilePath string, items []types.DataType)
 	}
 	var keyPath string
 	var dir string
-	for userDir, v := range multiItemPaths {
-		for _, p := range v {
-			if strings.HasSuffix(p, types.ChromiumKey.Filename()) {
-				keyPath = p
+	for userDir, profiles := range multiItemPaths {
+		for _, profile := range profiles {
+			if strings.HasSuffix(profile, types.ChromiumKey.Filename()) {
+				keyPath = profile
 				dir = userDir
 				break
 			}
@@ -138,6 +143,9 @@ func chromiumWalkFunc(items []types.DataType, multiItemPaths map[string]map[type
 			if strings.Contains(path, "System Profile") {
 				continue
 			}
+			if strings.Contains(path, "Snapshot") {
+				continue
+			}
 			profileFolder := fileutil.ParentBaseDir(path)
 			if strings.Contains(filepath.ToSlash(path), "/Network/Cookies") {
 				profileFolder = fileutil.BaseDir(strings.ReplaceAll(filepath.ToSlash(path), "/Network/Cookies", ""))
diff --git a/browser/firefox/firefox.go b/browser/firefox/firefox.go
index 974d39b5..78a2aa28 100644
--- a/browser/firefox/firefox.go
+++ b/browser/firefox/firefox.go
@@ -160,12 +160,12 @@ func (f *Firefox) Name() string {
 }
 
 func (f *Firefox) BrowsingData(isFullExport bool) (*browserdata.BrowserData, error) {
-	items := f.items
+	dataTypes := f.items
 	if !isFullExport {
-		items = types.FilterSensitiveItems(f.items)
+		dataTypes = types.FilterSensitiveItems(f.items)
 	}
 
-	b := browserdata.New(items)
+	data := browserdata.New(dataTypes)
 
 	if err := f.copyItemToLocal(); err != nil {
 		return nil, err
@@ -177,8 +177,8 @@ func (f *Firefox) BrowsingData(isFullExport bool) (*browserdata.BrowserData, err
 	}
 
 	f.masterKey = masterKey
-	if err := b.Recovery(f.masterKey); err != nil {
+	if err := data.Recovery(f.masterKey); err != nil {
 		return nil, err
 	}
-	return b, nil
+	return data, nil
 }