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Firefox incorrect show some gifs

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When I browse some sites, Firefox incorrectly displays some GIFs. It shows colorful lines.

When I browse some sites, Firefox incorrectly displays some GIFs. It shows colorful lines.

All Replies (5)

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Here is an example.

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Hi, First : try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

You will need to restart Firefox for this to take effect so save all work first (e.g., mail you are composing, online documents you're editing, etc.,) and then perform these steps:

In Firefox 55 and above:

  1. Click the menu button New Fx Menu and select Options (Windows) or Preferences (Mac, Linux).
  2. Select the General panel.
  3. Under Performance, uncheck Use recommended performance settings. Additional settings will be displayed.
    Fx55Performance-disableHWA
  4. Uncheck Use hardware acceleration when available.
  5. Close Firefox completely and then restart Firefox to see if the problem persists.

Did this fix your problems? Please report back to us!

If the problem is resolved, you should check for updates for your graphics driver by following the steps mentioned in these Knowledge base articles:


If the above doesn't do the trick, then would you please try this :

Type in the address bar about:config (press Enter) (promise to be careful, if asked)

Type in the search bar and look for the preference :

media.wmf.dxva.d3d11.enabled

and set its value to false

Then close and restart Firefox.

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Can you post a link to a publicly accessible page (i.e. no authentication or signing on required)?

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That aren't real GIF images, but are MP4 video files (GIFV) played with a HTML5 media player.

Do you otherwise have problems with playing MP4 files?

Did you try the suggestions Happy112 posted above?

  • [58+] media.wmf.dxva.d3d11.enabled