402760 - closing tabs while they're loading raises a TypeError

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[kenny t]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9

In FF 2.0.0.7-9 (and possibly earlier) on OS X 10.4.10, clicking the close-tab button or entering command-W closes the current tab, but it raises an alert dialog ("TypeError: window._content has no properties"), too, and documents in the window in question can no longer be navigated with the arrow keys, the page-up/down keys, or with the space bar. Other open FF windows are unaffected, but this issue breaks all tabs in the active window.

Reproducible: Always

Steps to Reproduce:
1. Open any pages, preferably some that have enough content to scroll around.
2. In a new tab, go to the listed page (not specific to that site, may have something to do with the type of embedded clutter on the page) and click the close-tab button before the progress indicator stops spinning.
3. In the remaining tab(s), try to move up, down, left or right with the arrow keys, with the page up/down/home/end keys, or with the space bar.
Actual Results:  
After step two, a dialog appears: "Alert: \n TypeError: window._content has no properties". If you try to move around in the other tabs, you get nothing. If you click in a text field in another tab and try to enter a slash, you'll (at least usually) get pulled into the search-in-page function, but otherwise text entry works.

The scrollbars work fine, and the mouse wheel still works.

Expected Results:  
No error, no limit on ability to navigate with keyboard.

Default theme, 10.4.10, official moz.org build.

Comment 1

[Wayne Mery (:wsmwk)]

if you still see this problem in version 3.x, please comment.
if you do not still see the problem, please close as WORKFORME (or some other appropriate resolution)

Comment 2

[Tyler Downer [He/Him]]

No reply, INCOMPLETE. Please retest with Firefox 3.6.8 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.