Fixed themes and profiles dialog now opens about:profiles

src/browser/base/content/zen-browser.js

@@ -0,0 +1,61 @@
+var { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+function BrowserOpenZenProfilesMgr(aView, { selectTabByViewId = false } = {}) {
+  return new Promise(resolve => {
+    let emWindow;
+    let browserWindow;
+
+    var receivePong = function (aSubject, aTopic, aData) {
+      let browserWin = aSubject.browsingContext.topChromeWindow;
+      if (!emWindow || browserWin == window /* favor the current window */) {
+        if (
+          selectTabByViewId &&
+          aSubject.gViewController.currentViewId !== aView
+        ) {
+          return;
+        }
+
+        emWindow = aSubject;
+        browserWindow = browserWin;
+      }
+    };
+    Services.obs.addObserver(receivePong, "EM-pong");
+    Services.obs.notifyObservers(null, "EM-ping");
+    Services.obs.removeObserver(receivePong, "EM-pong");
+
+    if (emWindow) {
+      if (aView && !selectTabByViewId) {
+        emWindow.loadView(aView);
+      }
+      let tab = browserWindow.gBrowser.getTabForBrowser(
+        emWindow.docShell.chromeEventHandler
+      );
+      browserWindow.gBrowser.selectedTab = tab;
+      emWindow.focus();
+      resolve(emWindow);
+      return;
+    }
+
+    if (selectTabByViewId) {
+      const target = isBlankPageURL(gBrowser.currentURI.spec)
+        ? "current"
+        : "tab";
+      openTrustedLinkIn("about:profiles", target);
+    } else {
+      // This must be a new load, else the ping/pong would have
+      // found the window above.
+      switchToTabHavingURI("about:profiles", true);
+    }
+
+    Services.obs.addObserver(function observer(aSubject, aTopic, aData) {
+      Services.obs.removeObserver(observer, aTopic);
+      if (aView) {
+        aSubject.loadView(aView);
+      }
+      aSubject.focus();
+      resolve(aSubject);
+    }, "EM-loaded");
+  });
+}