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!

為了改善您的使用體驗,本網站正在進行維護,部分功能暫時無法使用。若本站的文件無法解決您的問題,想要向社群發問的話,請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問,我們的社群成員將很快會回覆您的疑問。

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

When Shockwave Flash is enabled it causes flash videos to lag

  • 8 回覆
  • 29 有這個問題
  • 13 次檢視
  • 最近回覆由 FredMcD

more options

I just got a new laptop (Acer) with Windows 10. In Firefox 42.0, all youtube videos play fine (because of HTML5, I assume), but Flash videos lag. I set Shockwave Flash in the plugin list to 'Never Activate' and that fixes the lagging. But now some videos on other sites don't show up at all because they need Shockwave Flash (they also lagged before, for your information).

What do you think the problem is? I obviously want to have it enabled all the time, but without all that lagging.

I just got a new laptop (Acer) with Windows 10. In Firefox 42.0, all youtube videos play fine (because of HTML5, I assume), but Flash videos lag. I set Shockwave Flash in the plugin list to 'Never Activate' and that fixes the lagging. But now some videos on other sites don't show up at all because they need Shockwave Flash (they also lagged before, for your information). What do you think the problem is? I obviously want to have it enabled all the time, but without all that lagging.

被選擇的解決方法

I've found the problem. It was the Acer's crappy CPU. When playing Youtube videos Firefox took the CPU to 95% most of the time, and with Flash it was even worse because of Firefox and Flash player running at the same time.

So my problem should be fixed by buying a better laptop. That's what I get for assuming every laptop these days can run Youtube videos.

Thanks for the help, and I hope that what I found helps other people too who have this problem.

從原來的回覆中察看解決方案 👍 1

所有回覆 (8)

more options

If you have problems with current Shockwave Flash plugin versions then check this:

  • see if there are updates for your graphics drivers

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

  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

  • disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

more options

I just updated my drivers to the latest ones, tried disabling protected mode and tried disabling hardware acceleration. Nothing worked. The problem still persists.

more options
more options

And I just found out that youtube videos are only fine up to 480p. Any higher and they start lagging too.

And any quality fullscreen lags too.

more options

Perhaps this is a web site issue.

more options

Do you think so? I thought it was pretty funny when I tested other browsers. Firefox played youtube fine and flash laggy, Chrome had great flash and laggy youtube and Edge had no problem with either.

I'm really not looking forward to Edge being my choice, hehe.

I'm gonna try some more of those links you posted last. Maybe I'll find the problem there.

more options

選擇的解決方法

I've found the problem. It was the Acer's crappy CPU. When playing Youtube videos Firefox took the CPU to 95% most of the time, and with Flash it was even worse because of Firefox and Flash player running at the same time.

So my problem should be fixed by buying a better laptop. That's what I get for assuming every laptop these days can run Youtube videos.

Thanks for the help, and I hope that what I found helps other people too who have this problem.

more options

That was very good work. Well Done.