using my boilerplate yuh

src/background/events/onInstall.ts

@@ -0,0 +1,26 @@
+import { SECOND } from 'src/shared/util/time';
+
+/**
+ * Called when the extension is first installed or synced onto a new machine
+ */
+export default async function onInstall() {
+    // set the uninstall url
+    chrome.runtime.setUninstallURL('https://www.google.com');
+    logOnInstallEvent();
+}
+
+/**
+ * making sure we are not sending duplicate install event for users that have synced browsers
+ *  sync storage get's cleared on browser uninstall, so re-installing the browser will trigger the event
+ */
+function logOnInstallEvent() {
+    setTimeout(async () => {
+        const manifest = chrome.runtime.getManifest();
+        const INSTALL_KEY = `${manifest.short_name}-installed`;
+        const storage = await chrome.storage.sync.get(INSTALL_KEY);
+        if (!storage[INSTALL_KEY]) {
+            // TODO: send install event
+            await chrome.storage.sync.set({ [INSTALL_KEY]: true });
+        }
+    }, 5 * SECOND);
+}