diff --git a/xExtension-showFeedID/static/showfeedid.js b/xExtension-showFeedID/static/showfeedid.js
index 6811f1e..92c0241 100644
--- a/xExtension-showFeedID/static/showfeedid.js
+++ b/xExtension-showFeedID/static/showfeedid.js
@@ -7,7 +7,7 @@ if (url.searchParams.get('c') === 'subscription') {
 
 	button.classList.add('btn');
 	button.id = 'showFeedId';
-	button.innerHTML = '<img class="icon" src="../themes/icons/look.svg" /> FeedID';
+	button.innerHTML = '<img class="icon" src="../themes/icons/look.svg" /> Show IDs';
 	div.appendChild(button);
 
 	document.getElementById('showFeedId').addEventListener('click', function (e) {
@@ -22,5 +22,17 @@ if (url.searchParams.get('c') === 'subscription') {
 				feedname_elem.innerHTML = feedname_elem.textContent + ' (ID: ' + feedId + ')';
 			}
 		});
+
+		const cats = document.querySelectorAll('div.box > ul.box-content');
+		
+		let catId;
+		let catname_elem;
+		cats.forEach(function(cat) {
+			catId = cat.dataset.catId;
+			catname_elem = cat.parentElement.querySelectorAll('div.box-title > h2')[0];
+			if (catname_elem) {
+				catname_elem.innerHTML = catname_elem.textContent + ' (ID: ' + catId + ')';
+			}
+		})
 	});
 }