diff --git a/src/css/popup.css b/src/css/popup.css
index af78306..dc58628 100644
--- a/src/css/popup.css
+++ b/src/css/popup.css
@@ -685,6 +685,16 @@ span ~ .panel-header-text {
   padding-inline-start: 16px;
 }
 
+ul.container-info-url-list {
+  font-size: 14px;
+  list-style-type: none;
+  padding-left: 16px;
+}
+
+li.container-info-url-item {
+  padding-left: 16px;
+}
+
 .container-info-has-tabs img,
 .container-info-tab-row img {
   block-size: 16px;
@@ -700,7 +710,8 @@ span ~ .panel-header-text {
   max-inline-size: 200px;
 }
 
-.container-info-list {
+.container-info-list,
+.container-url-list {
   display: flex;
   flex-direction: column;
   margin-block-start: 4px;
diff --git a/src/js/background/backgroundLogic.js b/src/js/background/backgroundLogic.js
index 04906d8..b2a8556 100644
--- a/src/js/background/backgroundLogic.js
+++ b/src/js/background/backgroundLogic.js
@@ -112,6 +112,28 @@ const backgroundLogic = {
     return list.concat(containerState.hiddenTabs);
   },
 
+  async getUrlsForContainer(options) {
+    const requiredArguments = ["cookieStoreId"];
+    this.checkArgs(requiredArguments, options, "getUrlsForContainer");
+    const { cookieStoreId } = options;
+
+    const userContextId = this.getUserContextIdFromCookieStoreId(cookieStoreId);
+
+    let siteStoreKeyBase = assignManager.storageArea.getSiteStoreKey("http://x");
+    siteStoreKeyBase = siteStoreKeyBase.slice(0, siteStoreKeyBase.length-1);
+    let isSiteStorageKey = new RegExp("^" + siteStoreKeyBase);
+    isSiteStorageKey = isSiteStorageKey.test.bind(isSiteStorageKey);
+
+    const containerUrls = [];
+    for (const [key, value] of Object.entries(await browser.storage.local.get())) {
+      if (isSiteStorageKey(key) && value.userContextId === userContextId) {
+        containerUrls.push(key.slice(siteStoreKeyBase.length));
+      }
+    }
+
+    return containerUrls;
+  },
+
   async moveTabsToWindow(options) {
     const requiredArguments = ["cookieStoreId", "windowId"];
     this.checkArgs(requiredArguments, options, "moveTabsToWindow");
diff --git a/src/js/background/messageHandler.js b/src/js/background/messageHandler.js
index 6e5fced..fa8ab56 100644
--- a/src/js/background/messageHandler.js
+++ b/src/js/background/messageHandler.js
@@ -62,6 +62,11 @@ const messageHandler = {
           windowId: m.windowId
         });
         break;
+      case "getUrlsForContainer":
+        response = backgroundLogic.getUrlsForContainer({
+          cookieStoreId: m.cookieStoreId,
+        });
+        break;
       case "queryIdentitiesState":
         response = backgroundLogic.queryIdentitiesState(m.message.windowId);
         break;
diff --git a/src/js/popup.js b/src/js/popup.js
index cdbb20d..4a4d7cb 100644
--- a/src/js/popup.js
+++ b/src/js/popup.js
@@ -123,7 +123,6 @@ const Logic = {
   },
 
   async showAchievementOrContainersListPanel() {
-    // Do we need to show an achievement panel?
     let showAchievements = false;
     const achievementsStorage = await browser.storage.local.get({achievements: []});
     for (const achievement of achievementsStorage.achievements) {
@@ -752,6 +751,7 @@ Logic.registerPanel(P_CONTAINER_INFO, {
 
     // Populating the panel: name and icon
     document.getElementById("container-info-name").textContent = identity.name;
+    document.getElementById("container-info-urls-name").textContent = identity.name + " Sites";
 
     const icon = document.getElementById("container-info-icon");
     icon.setAttribute("data-identity-icon", identity.icon);
@@ -774,13 +774,41 @@ Logic.registerPanel(P_CONTAINER_INFO, {
       table.firstChild.remove();
     }
 
+    const urlList = document.getElementById("container-info-urls");
+    while (urlList.firstChild) {
+      urlList.firstChild.remove();
+    }
+
     // Let's retrieve the list of tabs.
-    const tabs = await browser.runtime.sendMessage({
-      method: "getTabs",
-      windowId: browser.windows.WINDOW_ID_CURRENT,
-      cookieStoreId: Logic.currentIdentity().cookieStoreId
-    });
-    return this.buildInfoTable(tabs);
+    const [tabs, urls] = await Promise.all([
+      browser.runtime.sendMessage({
+        method: "getTabs",
+        windowId: browser.windows.WINDOW_ID_CURRENT,
+        cookieStoreId: Logic.currentIdentity().cookieStoreId
+      }),
+      browser.runtime.sendMessage({
+        method: "getUrlsForContainer",
+        cookieStoreId: Logic.currentIdentity().cookieStoreId
+      }),
+    ]);
+    this.buildInfoTable(tabs);
+    this.buildUrlList(urls);
+    return;
+  },
+
+  buildUrlList(urls) {
+    const fragment = document.createDocumentFragment();
+    if (urls.length === 0) {
+      urls = ["None"];
+    }
+    for (let url of urls) { // eslint-disable-line prefer-const
+      const li = document.createElement("li");
+      fragment.appendChild(li);
+      li.classList.add("container-info-url-item");
+      li.innerText = url;
+    }
+
+    document.getElementById("container-info-urls").appendChild(fragment);
   },
 
   buildInfoTable(tabs) {
diff --git a/src/popup.html b/src/popup.html
index a28dd32..7e2bad6 100644
--- a/src/popup.html
+++ b/src/popup.html
@@ -145,6 +145,10 @@
           <table id="container-info-table" class="container-info-list">
           </table>
         </div>
+        <div class="scrollable container-info-urls">
+          <h3 id="container-info-urls-name" class="panel-header-text container-name truncate-text"></h3>
+          <ul id="container-info-urls" class="container-info-url-list"></ul>
+        </div>
       </div>
     </div>
   </div>