Is Firefox 5 beta 2 32-bit only? I can't seem to find an x64 download.

  • Have you got one single reason why you want a 64-bit browser, because I can think of several reasons why it's not only pointless, but undesirable.
    – paradroid
    May 28 '11 at 1:58
  • @paradroid, I would like to know your reasons for why you think having an x64 browser would be "undesirable," other than for the flash issues (Flash is an issue with everything though, like certain Linux OSs). (I'm just curious, for my own knowledge). I could definitely see how it is pointless. Having an x64 program only allows the program to be able to utilize more than 3GB (I think is the right number) of RAM, in which a browser will most likely never utilize all of that RAM. The only time I could think of x64 being undesirable is with Windows XP (X64 XP == EPIC FAIL by Microsoft, LOL...).
    – David
    May 28 '11 at 2:51
  • @David: As well as what you have mentioned, browser extensions would not be compatible and it would use quite a lot more RAM, and that makes a big difference when you have a few tabs open. I'd leave x64 browsers for a few years yet, as there is not a single reason to use them.
    – paradroid
    May 28 '11 at 3:19

You can get the latest Firefox (Nightly) from their server.

The file is called firefox-7.0a1.en-US.win64-x86_64.installer.exe

You can find full Firefox files here

For Firefox 5, Beta 2, I only see one version available from here.

Beta 3 is not available for Windows as of yet.

I do recommend the nightly build if you want to be on the bleeding-edge. You get the latest features and tests before anyone else, and it will automatically update at start if there are changes. Remember though, there are some bugs you may come across using it (since Nightly is their testing stuff), so if you do find bugs, report them to the developers!

Created most weekdays from the previous day's work, these builds may or may not work. Use them to verify that a bug you're tracking has been fixed.

We make nightly builds for testing only. We write code and post the results right away so people like you can join our testing process and report bugs. You will find bugs, and lots of them. Mozilla might crash on startup. It might delete all your files and cause your computer to burst into flames. Don't bother downloading nightly builds if you're unwilling to put up with problems.

Now since you asked the difference between 32 and 64 bit versions, here's a little information from Microsoft:

The terms 32-bit and 64-bit refer to the way a computer's processor (also called a CPU), handles information. The 64-bit version of Windows handles large amounts of random access memory (RAM) more effectively than a 32-bit system.

With a 32bit version of Firefox though, you should not see any issues since it does not access huge amounts of information at a time from the RAM.

  • @Simon, thanks for your answer. I think I want just the "candidate build" (not the nightly) for the latest beta (which I think is 2). So, if I use the link you provided (ftp.mozilla.org/pub/mozilla.org/firefox/nightly/…), would that be X64? (It doesn't say whether it's X86 or X64--or both). Thanks.
    – devuxer
    May 27 '11 at 22:06
  • Further investigation: this build appears to be X86 (32-bit), so if that's really the only one available, I guess I'll just stick with it for now. No harm running this on a 64-bit machine is there?
    – devuxer
    May 27 '11 at 22:16
  • No harm whatsoever. I have no issues on any of my 64bit machines running the 32bit version. May 27 '11 at 22:45
  • @DanM i added a little bit about 32bit and 64bit differences for you May 27 '11 at 22:52
  • @DanM No problem! Please do note, i found one of the reasons running 64bit may be an issue is that Flash is not available for 64bit browsers. You can however, get the preview of Adobe Flash Players "Square", the 64-bit support labs.adobe.com/technologies/flashplayer10/square May 28 '11 at 0:47

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.