diff --git a/src/background/background.js b/src/background/background.js
index e89dc9b..2d23f3d 100644
--- a/src/background/background.js
+++ b/src/background/background.js
@@ -1,5 +1,6 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
 import { Manager } from "lib-iitc-manager";
+import browser from "webextension-polyfill";
 import { _ } from "@/i18n";
 import { inject_plugin } from "./injector";
 import {
diff --git a/src/background/injector.js b/src/background/injector.js
index 271db12..be9ec30 100644
--- a/src/background/injector.js
+++ b/src/background/injector.js
@@ -1,5 +1,6 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
 
+import browser from "webextension-polyfill";
 import { check_matching } from "lib-iitc-manager";
 
 export async function inject_plugin(plugin) {
diff --git a/src/background/intel.js b/src/background/intel.js
index 1b761cd..49a6fd9 100644
--- a/src/background/intel.js
+++ b/src/background/intel.js
@@ -1,4 +1,5 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
+import browser from "webextension-polyfill";
 import { getTabsToInject } from "./injector";
 
 let lastIITCTab = null;
diff --git a/src/background/requests.js b/src/background/requests.js
index 91e9898..d2ccb64 100644
--- a/src/background/requests.js
+++ b/src/background/requests.js
@@ -1,5 +1,6 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
 
+import browser from "webextension-polyfill";
 import { parseMeta, ajaxGet, getUniqId } from "lib-iitc-manager";
 
 const IS_CHROME = !!global.chrome.app;
diff --git a/src/content-scripts/bridge.js b/src/content-scripts/bridge.js
index ab6fd36..8d2e5dc 100644
--- a/src/content-scripts/bridge.js
+++ b/src/content-scripts/bridge.js
@@ -1,5 +1,6 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
 
+import browser from "webextension-polyfill";
 import { inject } from "@/content-scripts/utils";
 import { strToBase64 } from "@/strToBase64";
 
diff --git a/src/content-scripts/loader.js b/src/content-scripts/loader.js
index a1dbbb7..67c75f4 100644
--- a/src/content-scripts/loader.js
+++ b/src/content-scripts/loader.js
@@ -1,4 +1,6 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
+
+import browser from "webextension-polyfill";
 import { GM } from "./gm-api";
 import { inject, IITCButtonInitJS } from "./utils";
 import { bridgeAction } from "@/content-scripts/bridge";
diff --git a/src/content-scripts/utils.js b/src/content-scripts/utils.js
index 8ef61cd..bbdb6e6 100644
--- a/src/content-scripts/utils.js
+++ b/src/content-scripts/utils.js
@@ -1,5 +1,6 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
 
+import browser from "webextension-polyfill";
 import { getUID } from "lib-iitc-manager";
 import { strToBase64 } from "@/strToBase64";
 
diff --git a/src/i18n.js b/src/i18n.js
index 9957bfa..059a2e3 100644
--- a/src/i18n.js
+++ b/src/i18n.js
@@ -1,4 +1,5 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
+import browser from "webextension-polyfill";
 
 export function _(msg, arg) {
   return browser.i18n.getMessage(msg, arg);
diff --git a/src/jsview/Header.vue b/src/jsview/Header.vue
index 73b19d7..872fcf5 100644
--- a/src/jsview/Header.vue
+++ b/src/jsview/Header.vue
@@ -60,6 +60,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { _ } from "@/i18n";
 import { getUID, humanize_match } from "lib-iitc-manager";
 const iitc_core_uid =
diff --git a/src/popup/components/ElementPlugin.vue b/src/popup/components/ElementPlugin.vue
index a47d957..f769179 100644
--- a/src/popup/components/ElementPlugin.vue
+++ b/src/popup/components/ElementPlugin.vue
@@ -51,6 +51,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { mixin } from "./mixins.js";
 
 const saveJS = (function () {
diff --git a/src/popup/components/InputCustomServer.vue b/src/popup/components/InputCustomServer.vue
index 093904b..5108c92 100644
--- a/src/popup/components/InputCustomServer.vue
+++ b/src/popup/components/InputCustomServer.vue
@@ -37,6 +37,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { mixin } from "./mixins.js";
 
 const checkStatusCustomServer = (host) =>
diff --git a/src/popup/components/SectionOptions.vue b/src/popup/components/SectionOptions.vue
index f7226ee..94a3e95 100644
--- a/src/popup/components/SectionOptions.vue
+++ b/src/popup/components/SectionOptions.vue
@@ -84,6 +84,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import Hr from "./Hr.vue";
 import Header from "./Header";
 import UpdateCheckIntervalSelector from "./UpdateCheckIntervalSelector";
diff --git a/src/popup/components/Title.vue b/src/popup/components/Title.vue
index 8b5ddd2..583767b 100644
--- a/src/popup/components/Title.vue
+++ b/src/popup/components/Title.vue
@@ -26,6 +26,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { mixin } from "./mixins.js";
 import ProgressBar from "./ProgressBar";
 import ToggleIITC from "./ToggleIITC";
diff --git a/src/popup/components/ToggleIITC.vue b/src/popup/components/ToggleIITC.vue
index 76c0bb4..f290fae 100644
--- a/src/popup/components/ToggleIITC.vue
+++ b/src/popup/components/ToggleIITC.vue
@@ -16,6 +16,8 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
+
 export default {
   name: "ToggleIITC",
   data() {
diff --git a/src/popup/components/UpdateCheckIntervalSelector.vue b/src/popup/components/UpdateCheckIntervalSelector.vue
index 4b724df..e119f65 100644
--- a/src/popup/components/UpdateCheckIntervalSelector.vue
+++ b/src/popup/components/UpdateCheckIntervalSelector.vue
@@ -24,6 +24,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { mixin } from "./mixins.js";
 
 export default {
diff --git a/src/popup/components/mixins.js b/src/popup/components/mixins.js
index ca1e4f6..d0c78db 100644
--- a/src/popup/components/mixins.js
+++ b/src/popup/components/mixins.js
@@ -1,4 +1,5 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
+import browser from "webextension-polyfill";
 import { _ } from "@/i18n";
 
 export const mixin = {
diff --git a/src/popup/data.js b/src/popup/data.js
index be4fe1a..c9febbb 100644
--- a/src/popup/data.js
+++ b/src/popup/data.js
@@ -1,4 +1,7 @@
 //@license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3
+
+import browser from "webextension-polyfill";
+
 export async function init(self) {
   const appData = self.$data;
   const data = await browser.storage.local.get([
diff --git a/src/popup/search.js b/src/popup/search.js
index 12ba313..b89e9f3 100644
--- a/src/popup/search.js
+++ b/src/popup/search.js
@@ -1,3 +1,5 @@
+import browser from "webextension-polyfill";
+
 import { fuzzysearch } from "scored-fuzzysearch";
 
 const score = (query, text) => {
diff --git a/src/settings/add/BlockDrop.vue b/src/settings/add/BlockDrop.vue
index e372b0c..b2a4bed 100644
--- a/src/settings/add/BlockDrop.vue
+++ b/src/settings/add/BlockDrop.vue
@@ -32,6 +32,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { parseMeta } from "lib-iitc-manager";
 import { _ } from "@/i18n";
 
diff --git a/src/settings/add/BlockURL.vue b/src/settings/add/BlockURL.vue
index 877ab35..9bc1d50 100644
--- a/src/settings/add/BlockURL.vue
+++ b/src/settings/add/BlockURL.vue
@@ -22,6 +22,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { ajaxGet, parseMeta } from "lib-iitc-manager";
 import { _ } from "@/i18n";
 
diff --git a/src/settings/backup/Main.vue b/src/settings/backup/Main.vue
index dc27c95..7a46866 100644
--- a/src/settings/backup/Main.vue
+++ b/src/settings/backup/Main.vue
@@ -56,6 +56,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { _ } from "@/i18n";
 import { getBackupDataFromZip, createBackupZip } from "./utils";
 
diff --git a/src/settings/debug/Main.vue b/src/settings/debug/Main.vue
index c5b4f69..cefecba 100644
--- a/src/settings/debug/Main.vue
+++ b/src/settings/debug/Main.vue
@@ -20,6 +20,7 @@
 </template>
 
 <script>
+import browser from "webextension-polyfill";
 import { _ } from "@/i18n";
 
 export default {