This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Is my browsier 32 bit or 64 bit?

  • 3 tontu
  • 65 am na jafe-jafe bii
  • 1 view
  • i mujjee tontu mooy James

more options

Java tells me that I may be use both 32 & 64 bit browsers and that determines which plug-in download I will use. I cannot find where Firefox tells me which browser I have, and I suspect that will also be the case with IE. My OS is 64-bit. Where can I find this info?

Java tells me that I may be use both 32 & 64 bit browsers and that determines which plug-in download I will use. I cannot find where Firefox tells me which browser I have, and I suspect that will also be the case with IE. My OS is 64-bit. Where can I find this info?

Saafara biñ tànn

mha007 is incorrect as he is thinking about Firefox for Windows when Firefox is still only 32-bit. The Win64-bit builds may not be until Firefox 12.0 or later.

It is well known that Firefox ever since Firefox 4.0 has had 64-bit and 32-bit builds for Mac OSX and Linux.

The Mac .dmg download actually comes with both 64-bit and 32-bit for Intel. For Fx 3.6.* and earlier it was 32-bit builds for Intel and PPC in .dmg.

Jàng tontu lii ci fi mu bokk 👍 2

All Replies (3)

more options

Your OS maybe 64bit but Firefox has not yet released a stable 64bit version for windows. So you are using Firefox 32bit.

Might not be related to your question but some of your Plugins are out-dated

  • Update All your Firefox Plugins -> https://www.mozilla.org/en-US/plugincheck/
  • When Downloading Plugins Update setup files, Remove Checkmark from Downloading other Optional Softwares with your Plugins (e.g. Toolbars, McAfee, Google Chrome, etc.)

Hasan moo ko soppali ci

more options

Thank you very much

more options

Saafara yiñ Tànn

mha007 is incorrect as he is thinking about Firefox for Windows when Firefox is still only 32-bit. The Win64-bit builds may not be until Firefox 12.0 or later.

It is well known that Firefox ever since Firefox 4.0 has had 64-bit and 32-bit builds for Mac OSX and Linux.

The Mac .dmg download actually comes with both 64-bit and 32-bit for Intel. For Fx 3.6.* and earlier it was 32-bit builds for Intel and PPC in .dmg.