This is a KVIrc script that modifies the popup menu for URLs to include the page title. This means that there will be a delay before the menu appears, while the page is downloaded. Don't forget to disable the existing event handler.

urlpopup.kvs

event(OnURLLinkPopupRequest,URLpopup) {
	http.asyncGet -m=1048576 -t=10 -w=h ($0, $file.localdir(tmp\\title-preview)) {
	  popup.show urlpopup $0 $1 $2 $3;
	}
}

defpopup(urlpopup) {
	prologue {
		%:status = $0;
		%:title_found = $false;
		%:title = "";
		%title_open = -1;
		%title_close = -1;
		if ($0 == 1) {
		  // Read in the file.
		  %data = $file.read($2, 1048576);
		  // Find the HTML title.
		  %title_open = $str.findfirst(%data, "<title>", $false, 0);
		  if (%title_open != -1)
		    %title_close = $str.findfirst(%data, "</title>", $false, $(%title_open + 7));
		  if (%title_open != -1 && %title_close != -1) {
		    %:title = $str.mid(%data, $(%title_open + 7), $(%title_close - %title_open - 7));
		    %:title_found = $true;
		    echo Page title: $k(2)%:title;
		  }
		  file.remove $2;
		}
	}
	
	label(Page title:) (%:title_found)
	
	label(%:title) (%:title_found)
	
	label(No page title was found.) (%:status == 1 && !%:title_found)
	
	label(The preview download failed.) (%:status != 1)
	
	item(Open link,14) {
		openurl $0
	}
	
	item($tr("Copy To Clipboard","defscript"),259) {
		str.toClipboard $0
	}
}