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

How can I tell if this is a 32 bit or a 64 bit browser?

more options

While trying to install Java Runtime Environment Plugin, I was asked this:

Which Download should I choose?

Choose the 32-bit download to use with a 32-bit browser. Choose the 64-bit download to use with a 64-bit browser. If you use 32-bit and 64-bit browsers, you need to download both 32-bit and 64-bit Java.

So, how do I know if this is a 32 bit or a 64 bit browser?

While trying to install Java Runtime Environment Plugin, I was asked this: Which Download should I choose? Choose the 32-bit download to use with a 32-bit browser. Choose the 64-bit download to use with a 64-bit browser. If you use 32-bit and 64-bit browsers, you need to download both 32-bit and 64-bit Java. So, how do I know if this is a 32 bit or a 64 bit browser?

被選擇的解決方法

Firefox Releases from mozilla.org including the current 37.0.2 is still Win32.

So for Win32 firefox you need 32-bit Plugins.

The Firefox 38.0 may be the first release to have Win64 builds along with Win32.

The WOW64 in your Firefox useragent shows it is a Win32 application on 64-bit Windows.

從原來的回覆中察看解決方案 👍 27

所有回覆 (2)

more options

選擇的解決方法

Firefox Releases from mozilla.org including the current 37.0.2 is still Win32.

So for Win32 firefox you need 32-bit Plugins.

The Firefox 38.0 may be the first release to have Win64 builds along with Win32.

The WOW64 in your Firefox useragent shows it is a Win32 application on 64-bit Windows.

more options

Most probably your browser is 32 bit unless you have downloaded an unofficial build of firefox.

An easy way to find out whether an application is 64 or 32-bit to check the installation folder:

   (all 32-bit applications will be here:) C:\Program Files (x86)\
   (all 64-bit applications will be here:) C:\Program Files\