Download the full installer of the program you want. During the install, switch to manual and select the folder where you want that Firefox placed.

Make sure you have a separate profile for each version because some things, like add-ons and some settings, are not compatible.

You can use sync to share password, bookmarks, and history. Anything else may not be compatible.

Download Firefox For All languages And Systems {web link}

Separate Security Issue: Update your Flash Player or remove it using these links; http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html Uninstall Flash Player | Windows http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html Uninstall Flash Player | Mac

Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version: Version 31.0.0.122

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

FredMcD said

Download the full installer of the program you want.

There is no compatible version: I try to install on Windows SERVER!

Why Firefox team not released compatible version like Firefox ESR?

installing Firefox on Windows server 2008

Ahh. You will need an older version of Firefox as the current programs are not compatible with older Windows systems.

Install Older Version Of Firefox {web link} Be sure to read everything here.

If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.

You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements

walkman123 said

installing Firefox on Windows server 2008

Win64 Firefox versions requires 64-bit Windows 7, 8 (8.1), 10.

You likely can only use 32-bit Firefox 52.9.0esr on server 2008 at the latest. However the legacy Fx 52.9.0esr is EOL as of Sept 5th with no more updates.

https://www.mozilla.org/firefox/52.9.0/system-requirements/ https://www.mozilla.org/firefox/53.0/system-requirements/ https://www.mozilla.org/firefox/60.0/system-requirements/ https://www.mozilla.org/firefox/62.0/system-requirements/

Why firefox team doesn't support server OS? Why firefox ESR is supporting? But now, I must install Google Chome with all new features instead Firefox on all my LAN PCs, because I prefer to use one brand to reduce my expenses (I am sysadmin).

walkman123 said

Why firefox team doesn't support server OS?

Firefox ended support for "Vista-based" versions of Windows, which includes the original Windows Server 2008.

Firefox currently supports "Windows 7-based" (and later) versions of Windows, which includes Windows Server 2008 R2.

I realize it's crappy that Microsoft didn't offer R2 as a free update for the original Windows Server 2008, but that is ten years behind us now, and not Mozilla's fight.

But now, I must install Google Chome with all new features instead Firefox on all my LAN PCs, because I prefer to use one brand to reduce my expenses (I am sysadmin).

Chrome has the same limitation: you can't install any version newer than Chrome 49 (March 2016) on your old OS. See, for example, https://productforums.google.com/forum/#!topic/chrome/tYd9OuWgtik

That's more than two years older than the final Firefox 52 ESR.

Why are you even running a web browser on a server? Considering the risks to such an old OS with obsolete browsers, you should set a security policy that prohibits accessing external sites other than Microsoft from the server, and you might as well use Internet Explorer for those.