304593 - conflict between overflow-x: hidden; and xul tabs

Status: UNCONFIRMED

(Core :: XUL, defect)

Description

[Mick Weiss]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b3) Gecko/20050712 Firefox/1.0+
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b3) Gecko/20050712 Firefox/1.0+

I found this while using Chatzilla on Mac. There was a strange scrollbar next to
the tabs. Silver helped me isolate the problem. It seems that (only on Mac),
there is a conflict between overflow-x: hidden; and xul tabs. I had people test
this on Linux and Windows - and it works ok - just on Mac it creates these
scrollbars.

Reproducible: Always

Steps to Reproduce:
1. execute the example XUL on a Mac 
2. 
3. 

Actual Results:  
Scrollbars appear. There are two scrollbars (created by test case #1 and #3)

Expected Results:  
They shouldn't be there (like on Linux or Win)

example code will be uploaded + 2 screenshots. 

1. will be the original problem I saw using chatzilla 
2. will be what the code produces on my box

Comment 1

[Mick Weiss]

Attachment: example xul

Comment 2

[Mick Weiss]

Attachment: the chatzilla scrollbar (that shouldn't be there)

Comment 3

[Mick Weiss]

Attachment: xul scrollbars (for test case #1 and #3)

Comment 4

[Simon Fraser [no longer active]]

Bug 187435?

Comment 5

[Mick Weiss]

I think it is similar, but not the same as the above mentioned bug. In short, I think it is the same problem but, different reason.