286362 - After using ctrl-tab to switch browser tabs, focus is on wrong page until clicking with mouse

Status: RESOLVED FIXED

(Firefox :: Keyboard Navigation, defect)

Description

[tdsub01]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.6) Gecko/20050225 Firefox/1.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.6) Gecko/20050225 Firefox/1.0.1

I have several (13 actually) browser-tabs open to different sites.  I press
ctrl-tab quickly to switch to a browser-tab several down the row.  Now I use the
tab-key to select a link, and the url of the selected link appears on the status
bar, but the urls are for the browser-tab to the left of the page I'm looking
at.  When pressing ctrl-tab it changed the browser-tab on the display X times,
but changed the keyboard focus X-1 times.  Clicking with mouse brings the focus
back to the displayed browser-tab.  It may be a race condition only on slower
hardware (P233 here) or with background tasks, but race conditions are bugs.

Reproducible: Sometimes

Steps to Reproduce:
1. open several tabs in 1 window on a slower PC
2. press ctrl-tab several times fast
3. press tab to select a link

Actual Results:  
More than half the time, the keyboard focus is on the wrong browser-tab.

Expected Results:  
The tab-key should select a link on the page that is in the visible browser-tab.

Comment 1

[Aaron Leventhal]

Bug reporters need to verify bugs with nightly builds here. 
http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/

Version 1.0.1 of Firefox is based on a branch that separated from the main code
base 1 1/2 years ago.

This bug is fixed in the trunk. Someone please find the duplicate bug.

*** This bug has been marked as a duplicate of 254056 ***

Comment 2

[Aaron Leventhal]

Actually I'm not sure if this is a DUPE of that one, but please verify that this
bug exists in nightly builds.

Comment 3

[uri]

same here with firefox 1.0.4 on fedora 3 and fedora 4 with gnome

Comment 4

[Matthew R. Howard, Sr.]

User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1)
Gecko/20050816 Firefox/1.0+

Define a 'slower PC' please.

Otherwise, WFM with that build in the following situations:

AMD XP 2400+, WinXP
AMD Duron 1000, WinXP
P3-750, Win2000 Professional
P2-450, Win98SE

Comment 5

[tdsub01]

(In reply to comment #2)
> Actually I'm not sure if this is a DUPE of that one, but please verify that
> this bug exists in nightly builds.

It is not a dupe of the cited bug, but it has been fixed, I think as early as 1.0.7.  I tested this on the same old P233 and couldn't re-create the problem.