diff --git a/src/config.ts b/src/config.ts
index b2c85d32..f06ba3b0 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -276,7 +276,7 @@ function decodeStoredItem<T>(id: string, data: T): T | SBMap<string, SponsorTime
 }
 
 function configProxy(): any {
-    chrome.storage.onChanged.addListener((changes, namespace) => {
+    chrome.storage.onChanged.addListener((changes) => {
         for (const key in changes) {
             Config.localConfig[key] = decodeStoredItem(key, changes[key].newValue);
         }
@@ -315,7 +315,7 @@ function configProxy(): any {
 }
 
 function fetchConfig(): Promise<void> { 
-    return new Promise((resolve, reject) => {
+    return new Promise((resolve) => {
         chrome.storage.sync.get(null, function(items) {
             Config.localConfig = <SBConfig> <unknown> items;  // Data is ready
             resolve();
diff --git a/src/content.ts b/src/content.ts
index cded9c45..18b7a646 100644
--- a/src/content.ts
+++ b/src/content.ts
@@ -1,6 +1,6 @@
 import Config from "./config";
 
-import { SponsorTime, CategorySkipOption, CategorySelection, VideoID, SponsorHideType, FetchResponse } from "./types";
+import { SponsorTime, CategorySkipOption, VideoID, SponsorHideType, FetchResponse } from "./types";
 
 import { ContentContainer } from "./types";
 import Utils from "./utils";
@@ -740,7 +740,7 @@ function startSkipScheduleCheckingForStartSponsors() {
  * Get the video info for the current tab from YouTube
  */
 function getVideoInfo() {
-    sendRequestToCustomServer('GET', "https://www.youtube.com/get_video_info?video_id=" + sponsorVideoID, function(xmlhttp, error) {
+    sendRequestToCustomServer('GET', "https://www.youtube.com/get_video_info?video_id=" + sponsorVideoID, function(xmlhttp) {
         if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
             const decodedData = decodeURIComponent(xmlhttp.responseText).match(/player_response=([^&]*)/)[1];
             if (!decodedData) {
@@ -1051,7 +1051,7 @@ function createButton(baseID, title, callback, imageName, isDraggable=false): bo
     newButton.classList.add("playerButton");
     newButton.classList.add("ytp-button");
     newButton.setAttribute("title", chrome.i18n.getMessage(title));
-    newButton.addEventListener("click", (event: Event) => {
+    newButton.addEventListener("click", () => {
         callback();
     });
 
@@ -1435,8 +1435,6 @@ function submitSponsorTimes() {
     //it can't update to this info yet
     closeInfoMenu();
 
-    const currentVideoID = sponsorVideoID;
-
     if (sponsorTimesSubmitting !== undefined && sponsorTimesSubmitting.length > 0) {
         submissionNotice = new SubmissionNotice(skipNoticeContentContainer, sendSubmitMessage);
     }
@@ -1583,7 +1581,7 @@ function sendRequestToCustomServer(type, fullAddress, callback) {
             callback(xmlhttp, false);
         };
   
-        xmlhttp.onerror = function(ev) {
+        xmlhttp.onerror = function() {
             callback(xmlhttp, true);
         };
     }
diff --git a/src/options.ts b/src/options.ts
index 979dac6b..c5631f7b 100644
--- a/src/options.ts
+++ b/src/options.ts
@@ -2,7 +2,7 @@ import Config from "./config";
 import * as CompileConfig from "../config.json";
 
 // Make the config public for debugging purposes
-(<any> window).SB = Config;
+window.SB = Config;
 
 import Utils from "./utils";
 import CategoryChooser from "./render/CategoryChooser";
@@ -107,7 +107,7 @@ async function init() {
 
                             // Permission needed on Firefox
                             if (utils.isFirefox()) {
-                                const permissionSuccess = await new Promise((resolve, reject) => {
+                                const permissionSuccess = await new Promise((resolve) => {
                                     chrome.permissions.request({
                                         origins: [textChangeInput.value + "/"],
                                         permissions: []
@@ -202,7 +202,7 @@ async function init() {
  * 
  * @param {String} element 
  */
-function optionsConfigUpdateListener(changes) {
+function optionsConfigUpdateListener() {
     const optionsContainer = document.getElementById("options");
     const optionsElements = optionsContainer.querySelectorAll("*");
 
@@ -243,7 +243,7 @@ function invidiousInstanceAddInit(element: HTMLElement, option: string) {
     const button = element.querySelector(".trigger-button");
 
     const setButton = element.querySelector(".text-change-set");
-    setButton.addEventListener("click", async function(e) {
+    setButton.addEventListener("click", async function() {
         if (textBox.value == "" || textBox.value.includes("/") || textBox.value.includes("http")) {
             alert(chrome.i18n.getMessage("addInvidiousInstanceError"));
         } else {
@@ -269,7 +269,7 @@ function invidiousInstanceAddInit(element: HTMLElement, option: string) {
     });
 
     const resetButton = element.querySelector(".invidious-instance-reset");
-    resetButton.addEventListener("click", function(e) {
+    resetButton.addEventListener("click", function() {
         if (confirm(chrome.i18n.getMessage("resetInvidiousInstanceAlert"))) {
             // Set to a clone of the default
             Config.config[option] = Config.defaults[option].slice(0);