--- a/background.js	Tue Oct 23 12:58:27 2018 +0200
+++ b/background.js	Thu Oct 31 16:22:48 2019 +0100
@@ -103,10 +103,23 @@
 browser.menus.onClicked.addListener(async (info, tab) => {
     let query = typeof info.selectionText !== 'undefined' ?
             info.selectionText.trim() : info.linkText.trim();
+    // create a new tab with the same contextual identity as the current tab
+    let newTab;
+    try {
+        newTab = await browser.tabs.create({
+            active: true,
+            cookieStoreId: tab.cookieStoreId,
+            openerTabId: tab.id
+        });
+    } catch (e) {
+        console.log(`Failed to create new tab: ${e.message}`);
+        return;
+    }
     try {
         await browser.search.search({
             query: query,
-            engine: info.menuItemId
+            engine: info.menuItemId,
+            tabId: newTab.id
         });
     } catch (e) {
         console.log(`Failed to search for "${query}": ${e.message}`);