diff --git a/live/live-root/root/.mozilla/firefox/profile/user.js.template b/live/live-root/root/.mozilla/firefox/profile/user.js.template
index a3e8c05cd7..7dad31db23 100644
--- a/live/live-root/root/.mozilla/firefox/profile/user.js.template
+++ b/live/live-root/root/.mozilla/firefox/profile/user.js.template
@@ -20,6 +20,14 @@ user_pref("browser.startup.homepage_override.mstone", "ignore");
 // TODO: make the XDG portal working again, it has more features (mounting USB flash)
 user_pref("widget.use-xdg-desktop-portal.file-picker", 0);
 
+// configure devtools
+// show devtools in a separate window
+user_pref("devtools.toolbox.host", "window");
+// show the console tab instead of the page inspector after pressing F12
+user_pref("devtools.toolbox.selectedTool", "console");
+// show time stamps in the console
+user_pref("devtools.webconsole.timestampMessages", true);
+
 // start always in the custom homepage
 user_pref("browser.startup.page", 1);
 // custom homepage: the value is expected to be replaced with the login URL by the startup script
diff --git a/live/src/agama-installer.changes b/live/src/agama-installer.changes
index 621ffc573b..247148c3b9 100644
--- a/live/src/agama-installer.changes
+++ b/live/src/agama-installer.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Fri Apr 25 14:10:04 UTC 2025 - Ladislav Slezák <lslezak@suse.com>
+
+- Display Firefox devtool in fullscreen window, display the
+  console by default after pressing F12, display timestamps
+  in console
+
 -------------------------------------------------------------------
 Thu Apr 24 16:40:41 UTC 2025 - Knut Anderssen <kanderssen@suse.com>