MDN / browserSettings.imageAnimationBehavior
MDN / browserSettings.imageAnimationBehavior
A object that can be used to change the way the browser handles animated images, such as GIFs.
The underlying value is a string that can take one of three values:
“normal”: the default. Play animated images as normal.
“none”: don’t animate images at all.
“once”: play the animation once.
Examples
Disable animated images:
browser.browserSettings.imageAnimationBehavior.set({ value: "none" });