426942 - Navigating via Back/Forward button to a page with plug-in will not load plug-in and may lead to a crash

Status: RESOLVED DUPLICATE of bug 426852

(Firefox :: General, defect)

Description

[Vlad Alexander]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9pre) Gecko/2008040305 Minefield/3.0pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9pre) Gecko/2008040305 Minefield/3.0pre

Pressing the Back button from a page with a plug-in, then pressing the Forward button will load the page but the plug-in will not render. Accessing the plug-in via JavaScript will then cause the FF to crash.

I request that this be marked as blocking1.9.

Reproducible: Always

Steps to Reproduce:
1. Install XStandard plug-in for Windows from here:
http://xstandard.com/download/NPXStandard.dll

2. Load any page in FF. Then go to:
http://xstandard.com/test.asp
A plug-in will load.

3. Press the Back button. Then press the Forward button. The page will load but the plug-in will not render.

4. On this page, press Submit button. This will cause a JavaScript function to copy data from the plug-in to a hidden field and post the form. Firefox will crash.
Actual Results:  
Plug-in is not rendered.

Expected Results:  
Plug-in should render.

This is a regression.

Plug-in not rendering can also be reproduced with other plug-ins. Go to this test page for example with Quicktime:
http://www.apple.com/trailers/wb/getsmart/trailer3/small.html

Then press Back then Forward button.

Comment 1

[timeless]

http://developer.mozilla.org/en/docs/How_to_get_a_stacktrace_with_WinDbg

Comment 2

[Ria Klaassen (not reading all bugmail)]

Partially duplicate of / related to Bug 426852 ?