Version 2.5.7 FAQ
From Joomla! Documentation
After upgrading to 2.5.7 I have popups in admin area not working - link "parameters" in article manager, in Phoca Download manager. Instead of popup they link to no-style page from where nothing can be done - neither save nor close.
- Please post your issue to Migrating and Upgrading to Joomla! 2.5 for help. -Thanks, Hutchy68 (talk) 07:11, 14 September 2012 (CDT)