Mozilla Firefox

Instructions for enabling JavaScript support for system "iRail"

In the address bar, type about:config and press Enter.

In the next window, click on I accept the risk! or I'll be careful, I promise! (depends on the version of Mozilla Firefox).

Find the name of the setting javascript.enabled. To easily find a setting, type javascript in the search bar, press Enter.

Toggle the javascript.enabled preference (right-click and select Toggle or double-click the preference) to change the value from false to true.

Close the about:config tab.

Refresh the page for login to the railway freight calculation system.