440086 - Form field of type input type=File cannot be "cleared" when using the back button.

Status: RESOLVED DUPLICATE of bug 431098

(Firefox :: General, defect)

Description

[Mantiss]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0

I am using a web site for form submissions (auctions). There are 5 input fields of type=file for pictures. When I submit one auction item with say 5 images, and use the back button, the input fields are grayed out and content cannot be deleted, instead each time you click on the field it forces you to pick up a file.

This worked fine until 2.0.0.14 but seems broken in 3.0. I've tried to change browser.formfill.enable to False but that did not resolve the issue.

Reproducible: Always

Steps to Reproduce:
1. Fill in all the fields and submit the form.
2. click on the back button to start over, some of the fields are greyed out 
3.
Actual Results:  
The field cannot be cleared

Expected Results:  
Field can be highlighted and cleared using delete

Right now I have to use 2.0.0.14 to workaround this bug.