Joomla 2.5 and Opera browser mootools error

So if your mootools tabs, accordions, animated menus, image sliders or other extensions don't work correctly, don't worry,

there's a fix for that, just follow the steps:

1) Download two files from [joomla_root]/media/system/js/

• mootools-core-uncompressed.js
• mootools-more-uncompressed.js

2) Change the names of downloaded files by removing '-uncompressed', like this:

• mootools-core.js
• mootools-more.js

3) Upload changed files into [joomla_root]/media/system/js/ and confirm replacing existing files.

Mootools should work fine now.