Change window title bar name in Page_Load event?

How to change window title bar name in Page_Load event?can I just use:$Title = $Title . " - " . “My appended custom title string”; ?$Title seems to be a global variable.just tested this, doesn’t work, Firefox Window Titlebar doesn’t change

konfuzion wrote:

$Title seems to be a global variable.

Yes, it is, so you need to use global keyword or $GLOBALS, e.g.

global $Title;
$Title = "My Custom Title";

// Or

$GLOBALS["Title"] = "My Custom Title";

Please try: How to Change Browser Title Dynamically (v2021).

It should work also for v2022.