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Launch 64bit Firefox for HTTP & HTTPS with 32bit installed after the 64bit.

  • 7 replies
  • 1 has this problem
  • 14 views
  • Last reply by FredMcD

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I had the 64 bit version of Firefox installed and configured. Then my company decided to use a package which requires an old 32 bit version be installed. I have no option but to use this package. Upgrading the package is way out of my control. After the 32bit install, now when a site is launched from an HTTP/HTTPS link, Firefox 32 bit is launched. When I go to Windows -> Default Programs, there is no option to select the 64bit version, it only list Firefox but it is the 32bit version. Being the 32bit version is very old, I don't want to use it for anything but the package my company requires. My guess is the last one in wins. Is there an easy/easier, i.e. not uninstall/reinstall as the 32bit install is very fragile and I cannot risk messing it up, to make Windows us the 64bit by default?

I had the 64 bit version of Firefox installed and configured. Then my company decided to use a package which requires an old 32 bit version be installed. I have no option but to use this package. Upgrading the package is way out of my control. After the 32bit install, now when a site is launched from an HTTP/HTTPS link, Firefox 32 bit is launched. When I go to Windows -> Default Programs, there is no option to select the 64bit version, it only list Firefox but it is the 32bit version. Being the 32bit version is very old, I don't want to use it for anything but the package my company requires. My guess is the last one in wins. Is there an easy/easier, i.e. not uninstall/reinstall as the 32bit install is very fragile and I cannot risk messing it up, to make Windows us the 64bit by default?

Chosen solution

You should talk this over with your IT.

You can have both 32 and 64 Firefox installed on your system. All you need to do is to install each program in its own Programs Folder. Also, each must use its own profile.

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Chosen Solution

You should talk this over with your IT.

You can have both 32 and 64 Firefox installed on your system. All you need to do is to install each program in its own Programs Folder. Also, each must use its own profile.

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Having both 32bit and 64bit is not the issue. The issue is which one Windows uses for the Default. This is the one which gets launched when you click on a link out side of the browser (HTTP/HTTPS). For example, you put a link to a web site in a Word document. When you click the link, Windows start the default browser. Which in my case is the 32bit. My guess it there is a registry setting that needs to be changed, but I can not find what it is.

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On the program you want as the default; Type about:preferences#general<enter> in the address bar. Turn on Make Firefox Default Browser. You can also turn on; Always Check Firefox Default Browser.

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Yes, Firefox is the default ("Firefox is currently your default browser.") The issue again is Windows picks up the 32bit version, not the 64bit version for the default.

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Okay, let's do this the hard way.

I have several versions of Firefox, and when I call on them, I use;

"C:\Program Files (x86)\Mozilla Firefox Current\firefox.exe" -P Firefox_66

as a shortcut. The -P option has the browser load that profile. (Note the quotes. Necessary because of the spaces in the link.)

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I found my point of confusion. The install of the 64bit is in the 32bit folder in Windows (i.e. Program Files (x86) v.s. Program Files). So in task manager it looked like the 32 bit version, it was in fact the 64bit version. Sorry for the confusion.

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Not a problem. What you should do is to label the program folder as I did above. (Mozilla Firefox Current)