What happened with Firefox 25?

[Hammer Attila]

Hi,

This day morning Firefox upgraded with latest 25.0 release my Ubuntu
12.04 machine.
After the upgrade, the browser me machine is unusable with Orca.
An example webpage with I experienced this issue:
http://www.origo.hu/hirmondo/techbazis/internet/20131029-4g-re-gyur-a-telekom.html

This webpage unable to scroll the opened articles with line by line.
When I press CTRL+HOME keystroke and a down arrow, the caret jumping
wrong place.

Anybody experienced similar issues? How to fix this issues?

Attila