diff --git a/Readme.md b/Readme.md
index f9456cb..b8e2769 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,6 +1,6 @@
 # 🔀 Random GitHub Notification
 
-**Firefox add-on which adds a toolbar button to open a random GitHub notification of yours!**
+**Chrome extension which adds a toolbar button to open a random GitHub notification of yours!**
 
 Very useful to catch up and work through notifications – with the excitement of randomness.
 
diff --git a/background.js b/background.js
index 7b90088..727c75f 100644
--- a/background.js
+++ b/background.js
@@ -1,20 +1,29 @@
-chrome.browserAction.onClicked.addListener(() => {
-  chrome.tabs.query({ url: "https://github.com/notifications*" }, (tabs) => {
+chrome.action.onClicked.addListener(async (tab) => {
+  try {
+    const tabs = await chrome.tabs.query({ url: "https://github.com/notifications*" });
+    
     if (tabs.length > 0) {
-      const tab = tabs[0];
-      chrome.tabs.update(tab.id, { active: true });
-      chrome.tabs.executeScript(tab.id, { code: `(${startNotificationRandomizer.toString()})()` });
+      const notificationTab = tabs[0];
+      await chrome.tabs.update(notificationTab.id, { active: true });
+      await chrome.scripting.executeScript({
+        target: { tabId: notificationTab.id },
+        func: startNotificationRandomizer
+      });
     } else {
-      chrome.tabs.create({ url: "https://github.com/notifications" }, (newTab) => {
-        chrome.tabs.onUpdated.addListener(function listener(tabId, changeInfo) {
-          if (tabId === newTab.id && changeInfo.status === 'complete') {
-            chrome.tabs.onUpdated.removeListener(listener);
-            chrome.tabs.executeScript(tabId, { code: `(${startNotificationRandomizer.toString()})()` });
-          }
-        });
+      const newTab = await chrome.tabs.create({ url: "https://github.com/notifications" });
+      chrome.tabs.onUpdated.addListener(function listener(tabId, changeInfo) {
+        if (tabId === newTab.id && changeInfo.status === 'complete') {
+          chrome.tabs.onUpdated.removeListener(listener);
+          chrome.scripting.executeScript({
+            target: { tabId: tabId },
+            func: startNotificationRandomizer
+          });
+        }
       });
     }
-  });
+  } catch (error) {
+    console.error('Error in extension:', error);
+  }
 });
 
 function startNotificationRandomizer() {
diff --git a/icon.svg b/icon.svg
deleted file mode 100644
index 5268176..0000000
--- a/icon.svg
+++ /dev/null
@@ -1,73 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   height="16"
-   width="16"
-   viewBox="0 0 4.233 4.233"
-   version="1.1"
-   id="svg4"
-   sodipodi:docname="icon.svg"
-   inkscape:version="1.4.2 (ebf0e940d0, 2025-05-08)"
-   inkscape:export-filename="icon.png"
-   inkscape:export-xdpi="768"
-   inkscape:export-ydpi="768"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:dc="http://purl.org/dc/elements/1.1/">
-  <metadata
-     id="metadata10">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title />
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <defs
-     id="defs8" />
-  <sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1440"
-     inkscape:window-height="823"
-     id="namedview6"
-     showgrid="false"
-     inkscape:zoom="15.418857"
-     inkscape:cx="10.701182"
-     inkscape:cy="11.382167"
-     inkscape:window-x="0"
-     inkscape:window-y="0"
-     inkscape:window-maximized="1"
-     inkscape:current-layer="svg4"
-     inkscape:showpageshadow="2"
-     inkscape:pagecheckerboard="0"
-     inkscape:deskcolor="#d1d1d1" />
-  <path
-     d="m 2.6483523,1.4277117 v 0.188274 c -0.3122133,0 -0.5269782,0.2242259 -0.7147792,0.4115539 -0.187801,0.187801 -0.3491112,0.3391771 -0.5369122,0.3391771 a 0.12535835,0.12535835 0 1 0 0,0.2507167 c 0.3131594,0 0.5265051,-0.2242259 0.7143061,-0.4120269 C 2.298768,2.0176055 2.4610243,1.8667024 2.6483523,1.8662294 V 2.0535573 L 3.0863969,1.740871 2.6483523,1.4272386 Z m -1.2639907,0.187801 a 0.12535835,0.12535835 0 0 0 -4.731e-4,0 0.12552092,0.12552092 0 1 0 0.012772,0.2507167 c 0.1229931,0 0.2355791,0.068592 0.3514765,0.1665137 0.031221,-0.029329 0.062916,-0.058658 0.097448,-0.093664 l 0.085149,-0.08373 C 1.7840892,1.7252604 1.6147372,1.6159857 1.397134,1.6159857 a 0.12535835,0.12535835 0 0 0 -0.012299,0 z m 1.2639907,0.5629299 v 0.1882741 c -0.1229931,0 -0.2360522,-0.068592 -0.3514765,-0.1669868 a 3.9357793,3.9357793 0 0 0 -0.096975,0.093191 l -0.086568,0.085149 c 0.1466455,0.1291428 0.3169437,0.2393635 0.53502,0.2393635 V 2.8047613 L 3.0863969,2.491602 2.6483523,2.1789157 Z"
-     id="path2"
-     style="fill:#808080;fill-opacity:1;stroke-width:0.47305"
-     inkscape:connector-curvature="0" />
-  <g
-     transform="matrix(0.00176375,0,0,-0.00176375,5.8966064e-7,4.2330003)"
-     fill="#000000"
-     stroke="none"
-     id="g2"
-     style="fill:#808080;fill-opacity:1">
-    <path
-       d="M 970,2301 C 665,2233 415,2064 243,1808 -58,1357 2,752 386,366 501,250 676,138 808,95 c 49,-16 55,-16 77,-1 24,16 25,20 25,135 v 118 l -88,-5 c -103,-5 -183,13 -231,54 -17,14 -50,62 -73,106 -38,74 -66,108 -144,177 -26,23 -27,24 -9,37 43,32 130,1 185,-65 96,-117 133,-148 188,-160 49,-10 94,-6 162,14 9,3 21,24 27,48 6,23 22,58 35,77 l 24,35 -81,16 c -170,35 -275,96 -344,200 -64,96 -85,179 -86,334 0,146 16,206 79,288 28,36 31,47 23,68 -15,36 -11,188 5,234 13,34 20,40 47,43 45,5 129,-24 214,-72 l 73,-42 64,15 c 91,21 364,20 446,0 l 62,-16 58,35 c 77,46 175,82 224,82 39,0 39,-1 55,-52 17,-59 20,-166 5,-217 -8,-30 -6,-39 16,-68 109,-144 121,-383 29,-579 -62,-129 -193,-219 -369,-252 l -84,-16 31,-55 32,-56 3,-223 4,-223 25,-16 c 23,-15 28,-15 76,2 80,27 217,101 292,158 446,334 590,933 343,1431 -145,293 -419,518 -733,602 -137,36 -395,44 -525,15 z"
-       id="path1"
-       style="fill:#808080;fill-opacity:1" />
-  </g>
-</svg>
diff --git a/icon128.png b/icon128.png
new file mode 100644
index 0000000..14b68cc
Binary files /dev/null and b/icon128.png differ
diff --git a/icon16.png b/icon16.png
new file mode 100644
index 0000000..a038533
Binary files /dev/null and b/icon16.png differ
diff --git a/icon32.png b/icon32.png
new file mode 100644
index 0000000..4191a76
Binary files /dev/null and b/icon32.png differ
diff --git a/icon48.png b/icon48.png
new file mode 100644
index 0000000..bb9fae4
Binary files /dev/null and b/icon48.png differ
diff --git a/manifest.json b/manifest.json
index 17cf951..16274d4 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,22 +1,23 @@
 {
-  "manifest_version": 2,
+  "manifest_version": 3,
   "name": "Random GitHub Notification",
   "version": "1.0",
-  "permissions": ["tabs", "activeTab", "https://github.com/*"],
-  "browser_action": {
+  "permissions": ["tabs", "activeTab", "scripting"],
+  "host_permissions": ["https://github.com/*"],
+  "action": {
     "default_icon": {
-      "48": "icon.svg"
+      "16": "icon16.png",
+      "32": "icon32.png",
+      "48": "icon48.png"
     }
   },
   "background": {
-    "scripts": ["background.js"]
+    "service_worker": "background.js"
   },
   "icons": {
-    "48": "icon.svg"
-  },
-  "browser_specific_settings": {
-    "gecko": {
-      "id": "random-github-notification@keeporsweep.net"
-    }
+    "16": "icon16.png",
+    "32": "icon32.png",
+    "48": "icon48.png",
+    "128": "icon128.png"
   }
 }