diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 4fb0285ae..f74ed5b4d 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -12,7 +12,7 @@
   },
   "lang1": { "message": "" },
   "i18n": { "message": "" },
-  "i18nAll": { "message": "zh fr" },
+  "i18nAll": { "message": "zh fr zh-TW" },
   "noActiveState": { "message": "As configured, here's no active state" },
   "vblank": { "message": "" },
   "voptions": { "message": "" },
diff --git a/_locales/zh_TW/messages.json b/_locales/zh_TW/messages.json
index ce4d2f175..3a88a0eca 100644
--- a/_locales/zh_TW/messages.json
+++ b/_locales/zh_TW/messages.json
@@ -10,7 +10,7 @@
   "description": {
     "message": "一款支持全鍵盤操作瀏覽器的輔助工具，只用鍵盤即可點擊任意連結、切換分頁和快速搜索任意內容，支持自訂快速鍵和調整操作細節"
   },
-  "lang1": { "message": "zh_TW" },
+  "lang1": { "message": "zh" },
   "noActiveState": { "message": "已設定不顯示工作狀態" },
   "vblank": { "message": "空白頁" },
   "voptions": { "message": "設定" },
diff --git a/background/i18n.ts b/background/i18n.ts
index 87a8d44ec..f66dcec60 100644
--- a/background/i18n.ts
+++ b/background/i18n.ts
@@ -57,7 +57,8 @@ const loadExt_ = (): Promise<void> => {
   ]).then(([enDict, wanted]): Promise<RawExtDict[]> | RawExtDict[] => {
     let all = ((enDict.get("i18nAll") || {}).message || "").split(" "), i = ""
     for (i of wanted || []) {
-      i = all.includes(i) || all.includes(i = i.split("-")[0]) ? i : ""
+      all.includes(i) || all.includes(i = i.split("-")[0]) || (i = "")
+      if (i) { break }
     }
     if (!i) { return [enDict] }
     return Promise.all([enDict, fetchFile_(`/_locales/${i}/messages.json`)])
diff --git a/gulpfile.js b/gulpfile.js
index 4f0096d6d..8d280e79b 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -72,7 +72,7 @@ var Tasks = {
   "static/json": function() {
     const path = ["_locales/*/messages.json", "settings-template.json", "i18n/**/*.json", "!" + LOCALES_EN]
     if (getBuildItem("BTypes") === BrowserType.Firefox) {
-      path.push("!_locales/*_*/**")
+      path.push("!_locales/zh_CN/**")
     }
     if (!getBuildItem("NDEBUG")) {
       return copyByPath(path);
diff --git a/scripts/firefox2.sh b/scripts/firefox2.sh
index e97398a5f..787411286 100644
--- a/scripts/firefox2.sh
+++ b/scripts/firefox2.sh
@@ -227,7 +227,7 @@ if test -z "$DIST" && test -f "${VC_EXT}"/manifest.json && ! test -f "${VC_EXT}"
 fi
 if test ${DIST:-0} -gt 0; then
   VC_EXT=$(/usr/bin/realpath "${VC_EXT}")
-  rm -rf "${VC_EXT}"/_locales/*_*
+  rm -rf "${VC_EXT}"/_locales/zh_CN
   wp vc_ext_w "$VC_EXT"
   if ! test -f ${VC_EXT}/manifest.json; then
     echo -e "No dist extension: "$vc_ext_w >&2
diff --git a/scripts/make.sh b/scripts/make.sh
index 36c274755..9151167af 100755
--- a/scripts/make.sh
+++ b/scripts/make.sh
@@ -65,7 +65,7 @@ output=$1
 ori_output=$output
 test_working=${TEST_WORKING:-1}
 # 0: may be; 1: is Chromium; 2: is Firefox
-chrome_only=${BUILD_BTypes:-0}
+btypes=${BUILD_BTypes:-0}
 test "$manifest_version" == "2" && mv2_tail="-mv2" || mv2_tail=
 if [ -z "$output" -o -d "$output" ]; then
   output=${output%/}
@@ -78,13 +78,13 @@ if [ -z "$output" -o -d "$output" ]; then
       ver=${ver}-debug
     elif test "$BUILD_EdgeC" == 1; then
       ver=${ver}-edge
-      chrome_only=1
+      btypes=1
     elif test -f "$ZIP_BASE/.build/.chrome.build"; then
       ver=${ver}-chrome
-      chrome_only=1
+      btypes=1
     elif test -f "$ZIP_BASE/.build/.firefox.build"; then
       ver=${ver}-firefox
-      chrome_only=2
+      btypes=2
     else
       ver=${ver}-dist
     fi
@@ -146,9 +146,9 @@ fi
 if ! bool "$WITH_MAP"; then
   ZIP_IGNORE=$ZIP_IGNORE' *.map'
 fi
-if test $chrome_only = 2; then
-  ZIP_IGNORE=$ZIP_IGNORE' *.bin _locales/*_*'
-elif test $chrome_only = 1; then
+if test $btypes == 2; then
+  ZIP_IGNORE=$ZIP_IGNORE' *.bin _locales/zh_CN'
+elif test $btypes == 1; then
   ZIP_IGNORE=$ZIP_IGNORE' icons/disable*.png icons/partial*.png'
 fi
 if ! bool "$INCLUDE_ALL_DOCS"; then