Trang web này sẽ có chức năng hạn chế trong khi chúng tôi trải qua bảo trì để cải thiện trải nghiệm của bạn. Nếu một bài viết không giải quyết được vấn đề của bạn và bạn muốn đặt câu hỏi, chúng tôi có cộng đồng hỗ trợ của chúng tôi đang chờ để giúp bạn tại @FirefoxSupport trên Twitter và /r/firefox trên Reddit.

Tìm kiếm hỗ trợ

Tránh các lừa đảo về hỗ trợ. Chúng tôi sẽ không bao giờ yêu cầu bạn gọi hoặc nhắn tin đến số điện thoại hoặc chia sẻ thông tin cá nhân. Vui lòng báo cáo hoạt động đáng ngờ bằng cách sử dụng tùy chọn "Báo cáo lạm dụng".

Tìm hiểu thêm

Firefox 43.0b1 cant play videos anymore

  • 7 trả lời
  • 1 gặp vấn đề này
  • 18 lượt xem
  • Trả lời mới nhất được viết bởi Levan7

more options

Since updating firefox I noticed that it started to have issues with playing videos.

First I noticed that the videos that I think aren't vp9 stopped playing on youtube. first I started blamed google for this but noticed that videos on NBA.com and ESPN stopped playing as well so it must be something wrong with Firefox.

one more thing I don't have flash installed

So can this issue be fixed ??

Since updating firefox I noticed that it started to have issues with playing videos. First I noticed that the videos that I think aren't vp9 stopped playing on youtube. first I started blamed google for this but noticed that videos on NBA.com and ESPN stopped playing as well so it must be something wrong with Firefox. one more thing I don't have flash installed So can this issue be fixed ??

Được chỉnh sửa bởi Levan7 vào

Giải pháp được chọn

The only way I found that fixed this issue was to refresh firefox

Đọc câu trả lời này trong ngữ cảnh 👍 0

Tất cả các câu trả lời (7)

more options

Flash Player (Linux) Version 11.2.202.540 https://www.adobe.com/products/flashplayer/distribution3.html


  • see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

See also:

edit: removed stuff not for Linux.

Được chỉnh sửa bởi James vào

more options

FredMcD said

Flash Player (Linux) Version 11.2.202.540 https://www.adobe.com/products/flashplayer/distribution3.html
  • see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

See also:

edit: removed stuff not for Linux.

Well I don't have flash installed neither I want it on my system, and the firefox would play videos on various websites and now it doesn't

more options

Giải pháp được chọn

The only way I found that fixed this issue was to refresh firefox

more options

You can check the prefs.js file in "Old Firefox Data" folder on the desktop (if you kept this folder) to see if there are media prefs listed that might have caused this.

more options

cor-el said

You can check the prefs.js file in "Old Firefox Data" folder on the desktop (if you kept this folder) to see if there are media prefs listed that might have caused this.

Sadly I deleted them, I was angry and was thinking about switching to chrome. however I had costume preferences that allowed vp9 playback

media.mediasource.ignore_codecs

media.fragmented-mp4.exposed media.fragmented-mp4.ffmpeg.enabled media.fragmented-mp4.gmp.enabled

media.mediasource.webm.enabled media.mediasource.enabled

I had this enabled plus i was forcing hardware acceleration. however this is the first time firefox stopped playing videos and was giving me errors like Video can't be played because the file is corrupt and No video with supported format and MIME type found

I even tried to downgrading firefox sadly no go so I ended up refreshing it however I have not enabled vp9 support or hardware acceleration yet

Được chỉnh sửa bởi Levan7 vào

more options

If you make such changes to prefs to enabled feature that may not be supported properly then that is at your own risk and you have to remember that you may have to undo these changes in case of problems. In severe cases where you can't start Firefox you need to edit prefs.js or create a user.js file to override defaults.

more options

cor-el said

If you make such changes to prefs to enabled feature that may not be supported properly then that is at your own risk and you have to remember that you may have to undo these changes in case of problems. In severe cases where you can't start Firefox you need to edit prefs.js or create a user.js file to override defaults.

Well I re enabled all of this after refreshing FF and it works. I don't know what happened there