1 files changed, 3 insertions, 9 deletions
diff --git a/browser/base/content/webext-panels.js b/browser/base/content/webext-panels.js
index e8820f4ad4..787193ab7d 100644
--- a/browser/base/content/webext-panels.js
+++ b/browser/base/content/webext-panels.js
@@ -125,22 +125,16 @@ function getBrowser(panel) {
   return readyPromise.then(initBrowser);
 }
 
-// Stub tabbrowser implementation for use by the tab-modal alert code.
+// Stub tabbrowser implementation to make sure that links from inside
+// extension sidebar panels open in new tabs, see bug 1488055.
 var gBrowser = {
   get selectedBrowser() {
     return document.getElementById("webext-panels-browser");
   },
 
-  getTabForBrowser(browser) {
+  getTabForBrowser() {
     return null;
   },
-
-  getTabModalPromptBox(browser) {
-    if (!browser.tabModalPromptBox) {
-      browser.tabModalPromptBox = new TabModalPromptBox(browser);
-    }
-    return browser.tabModalPromptBox;
-  },
 };
 
 function updatePosition() {