I've recently updated Dokuwiki and two plugins (Indexmenu, RemoteScript) to newest versions. If I try to expand namespace with '+' sign in generated menu there appears only "Loading..." label, nothing else. The namespace does not expand.
Code for menu:
DokuWiki v. 2006-11-06
Indexmenu v220.127.116.11 (2007-02-13)
RemoteScript v0.8.3.16 (2006-12-21)
Firefox version: 18.104.22.168 (cleared cache & cookies)
I've tested my configuration with Opera 9.10 and everything is OK. Firefox works strangely.