636937 - A cube shaped "dead" square after opening and closing the Preferences

Status: RESOLVED DUPLICATE of bug 641288

(Firefox :: Settings UI, defect)

Description

[Anton]

User-Agent:       Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b13pre) Gecko/20110225 Firefox/4.0b13pre
Build Identifier: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b13pre) Gecko/20110225 Firefox/4.0b13pre

After the Preferences setting is opened and closed, there is a weird square that is covering the Forward, Next, Reload buttons and the first 2 tabs.

Reproducible: Always

Steps to Reproduce:
1. Launch Firefox
2. Open Firefox/Preferences
3. Close Preferences (OK or cancel)
Actual Results:  
Screenshot :
http://pix.am/zz3T.png


I tried with 3 different themes.

The default one, NNL, and one random from mozilla.org.
All the same.

Comment 1

[Matthias Versen [:Matti]]

Please try http://support.mozilla.com/en-US/kb/Safe+Mode

Comment 3

[Teodosia Pop]

Can you still see the issue if you disable the hardware acceleration in Firefox
(Edit->Preferences->Advanced->General, uncheck "Use hardware acceleration when available") ?

Comment 4

[Nathan LaPierre]

I am experiencing this. It still occurs with "Use hardware acceleration when
available" unchecked.

Comment 5

[Anton]

I can confirm that the bug does not reproduce in safe mode.
Probably it is caused by one of the plugins/addons, need to research which one.

Comment 6

[Nathan LaPierre]

I am still experiencing this issue in safe mode.

Comment 7

[Matthias Versen [:Matti]]

Anton: The safemode disabled the hardware acceleration and addons.
Try disabling the addons and if that doesn't help disable the hardxware acceleration

Comment 9

[Benjamin Dahl]

Bug also occurs in safe mode

Comment 10

[alexhofi]

In my case the preference pane not only is left on screen, but is being opened on the left Side of the Firefox main window, halfway out of the screen.

When re-opening the preferences, the small sqaure "transforms" to the preference pane; so it semms the window associated with the pane is not closed at all, but only hidden...

See: http://img709.imageshack.us/img709/9811/bildschirmfoto20110525um.png

Comment 11

[Reijo Lähdetniemi]

Did you try creating a new profile? I did experience this since yesterday, and creating a fresh profile solved it for me.

Comment 12

[Benjamin Dahl]

yes this worked for me too

Comment 13

[Benjamin Dahl]

The weird thing is that in the old profile I had »Ok« and »Cancel« Buttons and in the new profile I don't

Comment 14

[Benjamin Dahl]

(In reply to comment #13)
> The weird thing is that in the old profile I had »Ok« and »Cancel« Buttons
> and in the new profile I don't

with the old profile it opens in the browser window and with the new one in a separate window

Comment 15

[mike bayer]

its something in the prefs.js causing this and it should be easy to fix once the flag is identified.  Since switching to a new profile would be very inconvenient, I copied the prefs.js from the new file to my old one and that resolves it.

Comment 16

[mcdavis941 (sporadically reading bugmail)]

See bug 641288.

Marking this as a dupe of 641288 (even though this one was filed first) because 641288 diagnoses the problem and says how to fix it.  (Short answer: don't mess with pref browser.preferences.instantApply on OS X, and watch out for extensions that change it.)

Thanks Anton for reporting this.

Comment 17

[Malbone]

This bug was present when running TenFourFox 10.0.9 on a PPC Mac G4.  All of the reported behaviors occurred -- unable to select preference panes; the only way to dismiss the Preferences window was to use the Esc key, which left the blank square covering the back-forward arrows and the leftmost tab.  By deleting and adding back extensions, I was able to isolate the extension that was causing it on my Mac -- TRUSTe Privacy Plugin 2.0.  (This is not the same as TRUSTe Tracker Protection Beta 1.1.2c)  Disabling that extension got rid of the problem.

Comment 18

[Miha Feus]

(In reply to mike bayer from comment #15)
> its something in the prefs.js causing this and it should be easy to fix once
> the flag is identified.  Since switching to a new profile would be very
> inconvenient, I copied the prefs.js from the new file to my old one and that
> resolves it.

Yes, this solved the problem for me too. I took the prefs.js from a backup of my profile, that I made before the problem started occurring. Thanks Mike for the tip.