How do I tell if I have the 32-bit or 64-bit Firefox?
- Revision id: 125601
- Creator: AliceWyman
- Comment: shortened note for win, fixed typo
- Reviewed: Yes
- Reviewed by: AliceWyman
- Is approved? Yes
- Is current revision? No
- Ready for localization: No
In addition to the 32-bit version of Firefox, a 64-bit version of Firefox is available for 64-bit operating systems, on Windows 7 or above. See this blog post for details. This article explains how to determine whether you are using the 32-bit or 64-bit version of Firefox.
The user agent identifies your browser to websites and contains information about your operating system and browser version. This can be an easy way to identify which version of Firefox is running.
To find your user agent, click the Firefox menu button , click help and select Troubleshooting Information page.. This will open the
In the Application Basics section of this page, find the User Agent entry and look at the information enclosed within the parentheses. If your user agent contains WOW64, you are running the 32-bit version of Firefox. If your user agent contains Win64; x64, you are running the 64-bit version of Firefox.
Windows program listing
You can also check the installed version of Firefox from the Windows list of installed programs. Open the Windows Control Panel, click onTo determine whether you have the 32-bit or 64-bit version of Firefox installed, locate Mozilla Firefox in the list of programs. The program name will include the Firefox version and, in parentheses, the bit version and language. If the program name contains x86, the 32-bit version of Firefox is installed. If the program name contains x64, the 64-bit version of Firefox is installed. , then . This will load a list of software that is currently installed on your computer.