No animation in some animated GIFs




11 years ago
11 years ago


(Reporter: blahman75, Unassigned)


Firefox Tracking Flags

(Not tracked)





11 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20080201 Firefox/
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20080201 Firefox/

This url contains an animated gif that used to work prior to firefox

After updating to firefox this animated GIF no longer works, it's static.

Reproducible: Always

Steps to Reproduce:
Just visit

Actual Results:  
Animation works fine in older firefox and IE but doesn't animate in firefox

Expected Results:  
GIF should be animated just like before.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20080208 BonEcho/

Works for me. Could you type about:config in the location bar and see if the pref image.animation_mode is set to normal?
Or else maybe this is caused by an add-on? Try running firefox in it's safe-mode to find out or try a new profile.

Comment 2

11 years ago
Ok, I've added that pref image.animation_mode (string) and set to 'normal' and it works now.

But I've never messed with those configs before, and it was not there before I added it.

I assume by default the latest mozilla does not have that setting, or those that were updated automatically never had that setting in the first place.

Basically I had to add it in, it was not there before that. Now it works. Thanks!
Last Resolved: 11 years ago
Resolution: --- → WORKSFORME
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