diff --git a/.eslintrc.json b/.eslintrc.json
index 9b1a19b3..f502479d 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -49,6 +49,7 @@
                 "stringReverse": "readonly",
                 "promiseTimeout": "readonly",
                 "stringReplaceAsync": "readonly",
+                "parseUrl": "readonly",
                 "EventDispatcher": "readonly",
                 "EXTENSION_IS_BROWSER_EDGE": "readonly"
             }
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index 1a1dc735..7b2ec46d 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -23,7 +23,7 @@ requestText, requestJson, optionsLoad
 dictConfigured, dictTermsSort, dictEnabledSet, dictNoteFormat
 audioGetUrl, audioInject
 jpConvertReading, jpDistributeFuriganaInflected, jpKatakanaToHiragana
-Translator, AnkiConnect, AnkiNull, Mecab, BackendApiForwarder, JsonSchema*/
+Translator, AnkiConnect, AnkiNull, Mecab, BackendApiForwarder, JsonSchema, ClipboardMonitor*/
 
 class Backend {
     constructor() {
diff --git a/ext/bg/js/clipboard-monitor.js b/ext/bg/js/clipboard-monitor.js
index b4a27fa2..c2f41385 100644
--- a/ext/bg/js/clipboard-monitor.js
+++ b/ext/bg/js/clipboard-monitor.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global apiClipboardGet, jpIsStringPartiallyJapanese*/
 
 class ClipboardMonitor {
     constructor() {
diff --git a/ext/bg/js/search-query-parser-generator.js b/ext/bg/js/search-query-parser-generator.js
index 8d71890b..f842644e 100644
--- a/ext/bg/js/search-query-parser-generator.js
+++ b/ext/bg/js/search-query-parser-generator.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global apiGetQueryParserTemplatesHtml, TemplateHandler*/
 
 class QueryParserGenerator {
     constructor() {
diff --git a/ext/bg/js/search-query-parser.js b/ext/bg/js/search-query-parser.js
index ff0dbaef..49c0bb34 100644
--- a/ext/bg/js/search-query-parser.js
+++ b/ext/bg/js/search-query-parser.js
@@ -16,7 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-/*global apiTermsFind, apiOptionsSet, apiTextParse, apiTextParseMecab, apiTemplateRender, TextScanner*/
+/*global apiTermsFind, apiOptionsSet, apiTextParse, apiTextParseMecab, apiTemplateRender, TextScanner, QueryParserGenerator*/
 
 class QueryParser extends TextScanner {
     constructor(search) {
diff --git a/ext/bg/js/search.js b/ext/bg/js/search.js
index 312d1de4..50ec146f 100644
--- a/ext/bg/js/search.js
+++ b/ext/bg/js/search.js
@@ -17,7 +17,7 @@
  */
 
 /*global jpIsStringPartiallyJapanese, apiOptionsSet, apiTermsFind, apiClipboardGet, apiGetEnvironmentInfo
-Display, QueryParser*/
+Display, QueryParser, ClipboardMonitor*/
 
 class DisplaySearch extends Display {
     constructor() {
diff --git a/ext/bg/js/settings/dictionaries.js b/ext/bg/js/settings/dictionaries.js
index c80aac73..fb459404 100644
--- a/ext/bg/js/settings/dictionaries.js
+++ b/ext/bg/js/settings/dictionaries.js
@@ -16,7 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-/*global getOptionsContext, getOptionsMutable, getOptionsFullMutable, settingsSaveOptions, apiOptionsGetFull
+/*global getOptionsContext, getOptionsMutable, getOptionsFullMutable, settingsSaveOptions, apiOptionsGetFull, apiOptionsGet
 utilBackgroundIsolate, utilDatabaseDeleteDictionary, utilDatabaseGetDictionaryInfo, utilDatabaseGetDictionaryCounts
 utilDatabasePurge, utilDatabaseImport
 storageUpdateStats, storageEstimate
diff --git a/ext/fg/js/document.js b/ext/fg/js/document.js
index 71654b29..7284cdd1 100644
--- a/ext/fg/js/document.js
+++ b/ext/fg/js/document.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global TextSourceElement, TextSourceRange, DOM*/
 
 const REGEX_TRANSPARENT_COLOR = /rgba\s*\([^)]*,\s*0(?:\.0+)?\s*\)/;
 
diff --git a/ext/fg/js/float.js b/ext/fg/js/float.js
index 8d61d8f6..d31b8336 100644
--- a/ext/fg/js/float.js
+++ b/ext/fg/js/float.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global popupNestedInitialize, Display*/
 
 class DisplayFloat extends Display {
     constructor() {
diff --git a/ext/fg/js/frontend-initialize.js b/ext/fg/js/frontend-initialize.js
index 9c923fea..c32e97d4 100644
--- a/ext/fg/js/frontend-initialize.js
+++ b/ext/fg/js/frontend-initialize.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global PopupProxyHost, PopupProxy, Frontend*/
 
 async function main() {
     const data = window.frontendInitializationData || {};
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 2286bf19..3611d44e 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global apiGetZoom, apiOptionsGet, apiTermsFind, apiKanjiFind, docSentenceExtract, TextScanner*/
 
 class Frontend extends TextScanner {
     constructor(popup, ignoreNodes) {
diff --git a/ext/fg/js/popup-nested.js b/ext/fg/js/popup-nested.js
index 3f3c945e..3e5f5b80 100644
--- a/ext/fg/js/popup-nested.js
+++ b/ext/fg/js/popup-nested.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global apiOptionsGet*/
 
 let popupNestedInitialized = false;
 
diff --git a/ext/fg/js/popup-proxy-host.js b/ext/fg/js/popup-proxy-host.js
index 427172c6..98729796 100644
--- a/ext/fg/js/popup-proxy-host.js
+++ b/ext/fg/js/popup-proxy-host.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global apiFrameInformationGet, FrontendApiReceiver, Popup*/
 
 class PopupProxyHost {
     constructor() {
diff --git a/ext/fg/js/popup-proxy.js b/ext/fg/js/popup-proxy.js
index 63aa6bbe..db6dffb1 100644
--- a/ext/fg/js/popup-proxy.js
+++ b/ext/fg/js/popup-proxy.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global FrontendApiSender*/
 
 class PopupProxy {
     constructor(depth, parentId, parentFrameId, url) {
diff --git a/ext/fg/js/popup.js b/ext/fg/js/popup.js
index e7dae93e..0b142dda 100644
--- a/ext/fg/js/popup.js
+++ b/ext/fg/js/popup.js
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+/*global apiInjectStylesheet*/
 
 class Popup {
     constructor(id, depth, frameIdPromise) {