displays the popup dialog but not enough time because it loads again Εργαλεία(tools), so I can't choose something else, for example Εγγραφα(documents).

Thank you in advance!

I use a lot a specific site from my university http://mycourses.ntua.gr I have the problem because I can't access a popup dialog to change 'folders' at a specific lesson. Example: http://mycourses.ntua.gr/course_description/index.php?cidReq=CIVIL1109 at the Εργαλεία(tools) displays the popup dialog but not enough time because it loads again Εργαλεία(tools), so I can't choose something else, for example Εγγραφα(documents). I am using the latest firefox for andoid available at google play. Is it possible to make it work from the mobile version of firefox? Thank you in advance!