diff -up firefox-120.0/toolkit/xre/nsAppRunner.cpp.fedora-customization firefox-120.0/toolkit/xre/nsAppRunner.cpp
--- firefox-120.0/toolkit/xre/nsAppRunner.cpp.fedora-customization	2023-11-13 21:48:38.000000000 +0100
+++ firefox-120.0/toolkit/xre/nsAppRunner.cpp	2023-11-14 10:39:13.001603081 +0100
@@ -5765,6 +5765,12 @@ int XREMain::XRE_main(int argc, char* ar
   if (!mAppData->remotingName) {
     mAppData->remotingName = mAppData->name;
   }
+
+  const char* appRemotingName = getenv("MOZ_APP_REMOTINGNAME");
+  if (appRemotingName) {
+    mAppData->remotingName = strdup(appRemotingName);
+  }
+
   // used throughout this file
   gAppData = mAppData.get();
 
diff -up firefox-120.0/widget/gtk/nsWindow.cpp.fedora-customization firefox-120.0/widget/gtk/nsWindow.cpp
--- firefox-120.0/widget/gtk/nsWindow.cpp.fedora-customization	2023-11-14 10:39:13.003603150 +0100
+++ firefox-120.0/widget/gtk/nsWindow.cpp	2023-11-14 10:41:06.339532735 +0100
@@ -3457,6 +3457,11 @@ void* nsWindow::GetNativeData(uint32_t a
 nsresult nsWindow::SetTitle(const nsAString& aTitle) {
   if (!mShell) return NS_OK;
 
+  const char* appTitle = getenv("MOZ_APP_TITLE");
+  if (appTitle) {
+    gtk_window_set_title(GTK_WINDOW(mShell), appTitle);
+    return NS_OK;
+  }
     // convert the string into utf8 and set the title.
 #define UTF8_FOLLOWBYTE(ch) (((ch) & 0xC0) == 0x80)
   NS_ConvertUTF16toUTF8 titleUTF8(aTitle);