85642 - animated gifs will show a black background even if it should be transparent

Status: VERIFIED DUPLICATE of bug 77914

(Core :: Graphics: ImageLib, defect)

Description

[andrelourenco]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.1) Gecko/20010607
BuildID:    2001060703

animated gifs with transparent background will show it black! you can see the
green worm at http://andyrock.no.sapo.pt - with mozilla 0.8.1 (the one i used
before 0.9.1), worm's background is transparent. 
this problem just happens with win32. with linux and the same build of mozilla
there is no problem.

Reproducible: Always
Steps to Reproduce:
1.visit a page that have an animated gif with transparent background
2.the background of the gif file will be black with mozilla 0.9.1
3.just happens on win32. i tried also on linux but without problems.

Comment 1

[Aaron Kaluszka]

DUP 77914

Comment 2

[Gilles Durys]

Indeed.

*** This bug has been marked as a duplicate of 77914 ***

Comment 3

[Terri Preston]

Verified Duplicate