diff --git a/browingdata/password/password.go b/browingdata/password/password.go
index 48184d0..e4541ce 100644
--- a/browingdata/password/password.go
+++ b/browingdata/password/password.go
@@ -169,7 +169,7 @@ const (
 	queryNssPrivate = `SELECT a11, a102 from nssPrivate`
 )
 
-func (f *FirefoxPassword) Parse(masterKey []byte) error {
+func (f *FirefoxPassword) Parse(_ []byte) error {
 	globalSalt, metaBytes, nssA11, nssA102, err := getFirefoxDecryptKey(item.TempFirefoxKey4)
 	if err != nil {
 		return err
diff --git a/crypto/crypto.go b/crypto/crypto.go
index f0bfbc2..eb2e325 100644
--- a/crypto/crypto.go
+++ b/crypto/crypto.go
@@ -32,22 +32,22 @@ func NewASN1PBE(b []byte) (pbe ASN1PBE, err error) {
 		l    loginPBE
 		errs []string
 	)
-	if _, err := asn1.Unmarshal(b, &n); err == nil {
+	if _, err = asn1.Unmarshal(b, &n); err == nil {
 		return n, nil
-	} else {
-		errs = append(errs, err.Error())
 	}
-	if _, err := asn1.Unmarshal(b, &m); err == nil {
+	errs = append(errs, err.Error())
+
+	if _, err = asn1.Unmarshal(b, &m); err == nil {
 		return m, nil
-	} else {
-		errs = append(errs, err.Error())
 	}
-	if _, err := asn1.Unmarshal(b, &l); err == nil {
+	errs = append(errs, err.Error())
+
+	if _, err = asn1.Unmarshal(b, &l); err == nil {
 		return l, nil
-	} else {
-		errs = append(errs, err.Error())
 	}
-	return nil, fmt.Errorf("%w: %s", err, strings.Join(errs, "; "))
+	errs = append(errs, err.Error())
+
+	return nil, fmt.Errorf("%w: %s", errDecodeASN1Failed, strings.Join(errs, "; "))
 }
 
 // nssPBE Struct
diff --git a/firefox.go b/firefox.go
index 7e429db..c59a54e 100644
--- a/firefox.go
+++ b/firefox.go
@@ -9,6 +9,7 @@ import (
 	"path/filepath"
 	"strings"
 
+	// import sqlite3 driver
 	_ "github.com/mattn/go-sqlite3"
 
 	"github.com/moond4rk/hackbrowserdata/crypto"