530831 - Page title of non-western page becomes unreadable after being left open for a long period of time

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[Jeffrey]

User-Agent:       Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; WOW64; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2; MS-RTC LM 8)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.2b3) Gecko/20091115 Firefox/3.6b3 (.NET CLR 3.5.30729)

When a non-western web page is left open for a long period of time (a day or two), the page title on the brower becomes unreadable (question marks). Here is a screen shot of the problem: http://www.cedarparknotebook.net/ourhome/uploads/2009/11/2009-11-24_111408.jpg

Once this happens, the browser has to be closed (if multiple tabs are open) then reopen to have the page title displayed correctly; or open a new FF instance and then go to the same page to display the page title correctly.

Reproducible: Always

Steps to Reproduce:
1.Open a non-western web page, say Chinese, and other tabs
2.Leave the non-western web page open and continue your other work, including lock/unlock your pc, etc., for a day or two.
3.You will notice the page title becomes unreadable.
Actual Results:  
The page title becomes unreadable.

Expected Results:  
The page title should always support uni-code text.

This actullay happened in previous versions of Firefox too, such as Firefox 3.5.

Comment 1

[Jeffrey]

Attachment: Unreadable page title

Comment 2

[Ria Klaassen (not reading all bugmail)]

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2b4pre) Gecko/20091122 Namoroka/3.6b4pre

This works fine for me on Windows Vista. 
So first you see the Chinese characters and after a few days they change into question marks? It is Windows which is specifying the font in your titlebar, not Firefox. Does this also happen if you use a different font type in your titlebar in the Display Properties?

Comment 3

[Jeffrey]

Yes, first I see Chinese characters in my titlebar, then after a few days, they become question marks.

I didn't change the font type and I am using all default settings for both Windows and Firefox.

I have a Windows 7 box and I will try it on Windows 7 to see if it happens as well.

Comment 4

[Jeffrey]

OK, it works fine on Windows 7. So it seems I only have this error with Windows XP. Wonder if any other Windows XP users have the same problem as me.

Comment 5

[Tyler Downer [He/Him]]

Reporter, are you still seeing this issue with Firefox 3.6.13 or later in safe mode or a fresh profile? If not, please close. These links can help you in your testing.
http://support.mozilla.com/kb/Safe+Mode
http://support.mozilla.com/kb/Managing+profiles

Comment 6

[Jeffrey]

It does not seem to be a issue of FireFox, it is related to OS.