Disable GIF animations in Firefox and Internet Explorer

To perminantly block GIF animations in Firefox:

  1. In the Address Bar type:
    about:config
    and press [Enter]
  2. In the Filter Bar type:
    image.animation_mode
  3. Change the string value of image.animation_mode from normal to none

To perminantly block GIF animations in Internet Explorer:

  1. Click Tools (press the [Alt] key to reveal the menu bar or open Internet Options in the Control Panel)
    Select Options
  2. Click the Advance tab
  3. Uncheck the box in the group Multimeida next to Play animations in web pages
Disable GIF animations in Firefox and Internet Explorer