602752 - in my university mail service, there are some mails that arent showed as they should

Status: UNCONFIRMED

(Firefox :: General, defect)

Description

[pabloadr87]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; es-ES; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; es-ES; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10

There are some mails that may have some javascript or something like that and then firefox dont show them complete, the space intended to show the mail is, at very first ok, complete, but then it is cropped down an just a small mail area is visible. It happens with every firefox version i have used, and even with latest minefield release. It doesnt happen with others browsers but i only use firefox. Im not a programmer so i dont know specifically the problem. Im almost sure the mail is a platform something like java mail or something like that.

Reproducible: Always

Steps to Reproduce:
Just open the university mail service
Open one of those emails. 
Actual Results:  
At fisrt the mail is ok, but then the mail area is cropped

Expected Results:  
the mail area dont be cropped

I just need to send someone the mail, an some images showing how it should be and how firefox show the mail.
I cant put the source code here because there is some info about my university.

Comment 1

[pabloadr87]

Sorry for my english

Comment 2

[Ludovic Hirlimann [:Usul]]

Doesn't look like an attack vector. opening for other triagers to see.