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

Torn off tabs lose full screen ability for flash videos. (Dual monitor)

  • 1 回覆
  • 5 有這個問題
  • 1 次檢視
  • 最近回覆由 cor-el

more options

I can easily replicate the issue on any system.

1.) Launch Firefox. 2.) Open several tabs of varying content making sure at least 1 is a flash video. 3.) tear off tab that is playing flash video, and send to second screen. 4.) Try to enable full screen playback in the new tab.


If the video is playing, the playback controls will not show up. If you pause it you will get the playback controls but when you enable full screen it will go to the other monitor and then disappear behind the main Firefox instance. (Every once in a while it will stay up front but it's still on the wrong screen) If you reattach the tab into the main Firefox instance it will behave normally again.

Firefox 28 (No Add ons) Windows 8.1 x64 (Although I've had the same problem in other OS's)

I can easily replicate the issue on any system. 1.) Launch Firefox. 2.) Open several tabs of varying content making sure at least 1 is a flash video. 3.) tear off tab that is playing flash video, and send to second screen. 4.) Try to enable full screen playback in the new tab. If the video is playing, the playback controls will not show up. If you pause it you will get the playback controls but when you enable full screen it will go to the other monitor and then disappear behind the main Firefox instance. (Every once in a while it will stay up front but it's still on the wrong screen) If you reattach the tab into the main Firefox instance it will behave normally again. Firefox 28 (No Add ons) Windows 8.1 x64 (Although I've had the same problem in other OS's)

所有回覆 (1)

more options

Such issues can be a problem with hardware acceleration in Firefox and/or the Flash plugin.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You can check for problems with current Shockwave Flash plugin versions and try this:

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

See also: