572964 - ALT-LEFTARROW causes gray-screen and stops accepting keyboard input

Status: RESOLVED INCOMPLETE

(Firefox :: Keyboard Navigation, defect)

Description

[ala.frosty]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729)

Normally the keyboard alt-leftarrow should return FF to the previous page. Previous versions did this error-free, but the last two have had this bug. If the new page has not finished loading BEFORE pressing alt-leftarrow, then the screen is erased and replaced with a gray screen. Keyboard inputs are no longer accepted by FF. Refreshing the screen with the "Refresh" button cures the issue, but one cannot press F5 to fix it.

Same behaviour on two x86-64 machines both under windows-7-64. 

Behaviour is normal if the page has finished loading. I do this a lot on craigslist.org so try it there.

Reproducible: Always

Steps to Reproduce:
1.http://buffalo.craigslist.org/mcy/
2.Start clicking on the listings
3.Alt-backarrow before they finish loading (you have to get one where the picture loads slowly.
4.Voila: Gray-screen
Actual Results:  
Gray-screen

Expected Results:  
Previous page

Comment 1

[Kevin Brosnan]

Is this reproducible in Firefox's safe mode and or a new profile? Both are explained in http://support.mozilla.com/en-US/kb/Basic+troubleshooting

Comment 2

[Wayne Mery (:wsmwk)]

works fine here