How do I switch off animations in Firefox?

[kaled]

In about:config I found image.animation_mode but it's a string value. What value should I set?

Kaled.

[encyclo]

The default value is "normal", and you can change it to either "once" or "none" (both self-explanatory!) Perfect for calming down those agitated, err, I mean animated GIFs.

[MatthewHSE]

You can also use the AniDisable extension from update.mozilla.org.

[kaled]

Thanks.... I've set it to none

Not sure that once is self-explanatory though.

Kaled.

[Receptional Andy]

>>Not sure that once is self-explanatory though

'Once' just means that the image will do its animation once only (i.e. it won't loop endlessly).

[ytswy]

When set to once the GIF will animate once but not loop, no matter what the website has specified.

Slightly less annoying than normal, but not as nice a browsing experience as none *shrug*

<edit>must type faster..</edit>