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

I have Firefox 4.0. I downloaded Video Downloader extension. Cannot open it, get message that there is no app in which to open it. Please advise. Ralph

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

more options

I cannot open Video Downloader, get message there is no app in which to open it, although I have Firefox 4.0.

I cannot open Video Downloader, get message there is no app in which to open it, although I have Firefox 4.0.

所有回覆 (1)

more options

If you saved the .xpi file to your computer then use File > Open File to install the extension.

If is easier to install the extension directly from the website and not download the file.