819764 - Version 17 claims GIF files are broken

Status: RESOLVED WORKSFORME

(Core :: Graphics: ImageLib, defect, P3)

Description

[John Chivian]

Attachment: SpaceBackground.gif

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20100101 Firefox/17.0
Build ID: 20121128204232

Steps to reproduce:

Viewed a website.


Actual results:

The background GIF image does not display.  Instead a message appears claiming the GIF is broken.  No browser (including Firefox) or image editor has ever complained about the image before, and no other browser or image editor complains about them now.

"The image "fileOrHyperlink" cannot be displayed because it contains errors.


Expected results:

The image should be displayed as the page background.

Comment 1

[John Chivian]

This behavior occurs in both Windows and MacOS versions of Firefox.

http://chivian.com/chivian/HomePage.shtml

Comment 2

[Alice0775 White]

Regression window(m-c)
Good:
http://hg.mozilla.org/mozilla-central/rev/9cfb80a82883
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120922003414
Bad:
http://hg.mozilla.org/mozilla-central/rev/b461a7cd250e
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120922052915
Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=9cfb80a82883&tochange=b461a7cd250e

Regression window(m-i)
Good:
http://hg.mozilla.org/integration/mozilla-inbound/rev/046968d6f256
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120921151816
Bad:
http://hg.mozilla.org/integration/mozilla-inbound/rev/eea69a3e5c1b
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120921153315
Pushlog:
http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=046968d6f256&tochange=eea69a3e5c1b


Suspected:
	e776f05c4f80	Joe Drew — Bug 789046 - Port a bug fix from the Webkit GIF decoder back to its progenitor, Mozilla! r=jlebar
	e36ba60ece12	Joe Drew — Bug 758200 - Zero out buffers when allocating new frames in GIF images. r=jlebar

Comment 3

[Joe Drew (not getting mail)]

Both Chrome and us reject this image. I'm inclined to wontfix this, though I haven't done any investigation as to why we're rejecting the image.

Comment 4

[Alex Keybl [:akeybl]]

Based upon comment 3, no need to track. Please re-nominate if this occurs on other sites as well.

Comment 5

[Benoit Girard (:BenWa)]

It does work in Safari and Preview.

Comment 6

[John Chivian]

The images also work in IE and in every image viewer or editor I have tried (other than Firefox) regardless of platform.

Comment 7

[u279076]

Does this bug reproduce in the current Firefox Nightly?