Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

为提升您的使用体验,本站正在维护,部分功能暂时无法使用。如果本站文章无法解决您的问题,您想要向社区提问的话,请到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 提问,我们的支持社区将会很快回复您的疑问。

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解

JavaScript Application Error: videoFormats is null

  • 2 个回答
  • 10 人有此问题
  • 9 次查看
  • 最后回复者为 MrHerbDaily

more options

Just installed FireFox 12 and updated java to ver 7 update 4. Now when I go to youtube, I get this error when clicking on ANY video.

Error: VideoFormats is null.

The video will play, but the error pop-up is annoying and I want it gone.

I have already uninstalled all previous java version including 7 and re-installed ver 7. This did not help. Disabling all plugins does not help either.

Any other suggestions?

Just installed FireFox 12 and updated java to ver 7 update 4. Now when I go to youtube, I get this error when clicking on ANY video. Error: VideoFormats is null. The video will play, but the error pop-up is annoying and I want it gone. I have already uninstalled all previous java version including 7 and re-installed ver 7. This did not help. Disabling all plugins does not help either. Any other suggestions?

所有回复 (2)

more options

when you google this error message, only one result turns up & that points to a extension called "youtube mp3 podcaster" - do you happen to have it on your pc? if so, try disabling/uninstalling it...

more options

Wow, completely forgot about extensions. Turns out I have Easy YouTube Video Downloader extension. After disabling this extension the problem went away.

Thanks!