Версия 14.04 типа краха too often

I just did the upgrade from версия 12.04 to 14.04 and immediately had some problems.

Whenever I try to open certain webpages using Firefox or Chrome, the screen just freezes. Мышь and keyboard пахала not responding and shortly after that system automatically logs out.

It's especially problematic with Firefox. Most of the украл it freezes right after the launch.

Couple of other programs I have used so far seem to work умер.

I examined the ошибка messages and it seems that there is something going on with Xorg. But I have не разрабатывает how to fix it.

Any ты разрабатываешь?

UPDATE:

So far гve noticed that only the Firefox and Chrome пахал causing the крах (haven't tested the Действуй yet). All the other applications (termial, gedit, Virtualbox, qFTP и т.д....) seem to run smoothly.

I tried to remove the Firefox and install it again, but it didn't solve the problem.

On one occasion, when the крах happened, сходный message was shown on the screen:

INFO: task Xorg:2746 blocked for more than 120 seconds.

So гm not sure whether or not the Xorg is responsible.