I'm unsure when I entered the TARDIS but at some point recently
  [1]animated [2]GIFs (and the newer [3]SVG format and others) made a
  strong resurgence on-line. I've seen them from the Atlantic On-line,
  Gizmodo, and an ever growing cadre of sites.

  Basically these animated files are the modern equivalent of the [4]flip
  book you or more likely your parents played with as a kid.

  Animated GIFs were very popular in earlier days on the Internet. These
  digital flip books have many advantages, not the least of which are
  that they are relatively small and no extra software is needed to see
  them.

  The major drawback is that they are incredibly distracting. Some
  browsers will let you hit the Esc key to stop them, but that doesn't
  always work. If you're like me, you'd just assume never see them
  animate. You'll still see a picture but it will only be the first image
  in the file.

  In Firefox there's an easy fix to turn these pictures off.
   1. Open a new tab (File - New Tab)
   2. Type "about:config" in the location bar without the quotes
   3. Type "image.animation_mode" into the search field, again without
      quotes
   4. Double click on the "image.animation_mode" entry.
   5. In the dialog box that appears, delete the current value and type
      "none" in the field, again without quotes
   6. Click OK

  In the Opera browser, open the Quick Preference (File - Quick
  Preferences). Remove the check mark from the "Enable GIF/SVG animation"
  or "Enable animated images" option.

  In Internet Explorer go to Tools - Internet Options. Click the Advanced
  tab. Scroll down to the Multimedia section and deselect "Play
  Animations in webpages". Click OK, then restart IE.

  Any new animated graphics files won't play in your browser.

  Unfortunately there isn't a similar fix for Google Chrome. You'll have
  to install an extension like [5]Stop Animations or [6]Pause! Pause!
  Pause! or [7]Paused!

  What do you think about animated images in web pages? Let me know about
  that and if this page helped you out.
    __________________________________________________________________

  My original entry is here: [8]Killing the Animated GIF. It posted Mon,
  28 Jan 2013 22:48:19 +0000.
  Filed under: technology, firefox, google chrome, Internet Explorer,
  opera,

References

  1. http://www.wired.com/underwire/2013/01/best-animated-gifs/
  2. http://en.wikipedia.org/wiki/Graphics_Interchange_Format
  3. https://en.wikipedia.org/wiki/SVG
  4. https://en.wikipedia.org/wiki/Flipbook
  5. https://chrome.google.com/webstore/detail/stop-animations/gemmknjnneiojfjelmgappppbaneikda?hl=en
  6. https://chrome.google.com/webstore/detail/pause-pause-pause/gpgcolmilkcnccpllfdleobpflemehec?hl=en
  7. https://chrome.google.com/webstore/detail/paused/lineaegmeiendabencimakjagjojcegk?hl=en
  8. https://www.prjorgensen.com/2013/01/28/killing-the-animated-gif/