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!

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

VTT subtitles are shown double in latest Firefox

  • 2 个回答
  • 1 人有此问题
  • 5 次查看
  • 最后回复者为 daniel60

more options

When I play a video in the latest Firefox (Windows or Mac) from the streaming service www.cineasterna.com the VTT-subtitle are shown double.

This issue did not occur in previous version of Firefox. The subtitles works fine and does not show double in other browsers (Chrome, Safari, Edge, IE).

Why is that?

When I play a video in the latest Firefox (Windows or Mac) from the streaming service www.cineasterna.com the VTT-subtitle are shown double. This issue did not occur in previous version of Firefox. The subtitles works fine and does not show double in other browsers (Chrome, Safari, Edge, IE). Why is that?
已附加屏幕截图

所有回复 (2)

more options

You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" for websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Manage Data

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window
more options

Thanks, but that did not solve my problem.