The last version that will work on Windows 7 is Firefox 115. You can get it here: https://ftp.mozilla.org/pub/firefox/releases/115.13.0esr/win32/en-US/

Hi, Pillenwerfer,

Unfortunately I dont have a browser on my win 7 laptop and therefore must try to download it on my win10 desktop....when I try this Firefox wants to download AND install on the win 10 desktop. How do I download only ? On a flashdrive or will it want to install there as well .

THANKS

see above..........It does not help on a flashdrive as I do not have Outlook to open your email.

I haven't used Windows for years but THINK you can right-click the file you want and choose Save As.

I plugged in the flashdrive into my Win 10 desktop and opened the desktops Firefox and set its downloads to the flashdrive instead of "downloads". Then went to the links you sent me and found the two different FF versions. I downloaded them and thereafter put the flashdrive into my Win 7 laptop and installed FF in the laptop. It installed OK but I find that its operation very slow/sluggish but it works. Naturally I changed the Win 10 FF download back to "downloads". Thanks for your efforts in helping me.

Use the Firefox Setup 115.13.0esr.exe version and not the msi.

Note unless Mozilla extends with further updates for the old Firefox 115 ESR channel, the Fx 115.15.0esr update planned for in September will be the last version that supports the EOL Windows, 7, 8, 8.1 and also macOS 10.12, 10.13, 10.14 https://support.mozilla.org/en-US/kb/firefox-users-windows-7-8-and-81-moving-extended-support

At least you had support this long as other major web browsers dropped support for the EOL Windows 7, 8, 8.1 back in Jan/Feb of last year.

Firefox 116.0 and later requires Windows 10/11 and macOS 10.15 and later to run. The other option perhaps is to dual boot with a light Linux distro (avoid KDE and Gnome desktop). Though there are not many still supported 32-bit Linux distro options if the CPU on your laptop is 32-bit and not actually 64-bit as OEM's may install 32-bit Windows even though it had a 64-bit CPU.