Problem after migrating from 2.5 to 3.5 "javascript:void(0)"

[lastur]

Hello,
I have migrated from Joomla 2.5 to 3.5.1 following this tutorial:
https://docs.joomla.org/Joomla_2.5_to_3 ... _Migration

The frontend looks good, as the previous version. But in the backend I have a problem: I can not create or edit articles, users, etc. At the bottom of the window always appears javascript: void (0)

Can you help? Thank you.

[osearcaigh]

A common problem after this migration is that the browser cache needs to be cleared properly. Clear that cache or try with a different browser and see how that goes.

[bronfai]

You're right, I have cleared the history (Firefox) and everything works fine.

Thank you very much!

[osearcaigh]

Excellent! Well done.