How to Download old version of Firefox

Mozilla, the organization that develops Firefox, offers downloads of all previous Windows and macOS versions for testing purposes—they do not, however, recommend downgrading, as older version usually have unpatched security holes. Mozilla doesn't offer older versions of the Firefox mobile app for download. I am looking for a script to use within Dell Kace that enables me to uninstall any versions of Mozilla firefox. Does anyone have anything?

If you want to download old version of Mozilla Firefox for testing purpose or any other reason Mozilla have This Website which enable you to download Mozilla Firefox old Versions.

Downgrade Firefox is a Security Risk

Notice that it is not recommended downgrading Firefox and going to older version, doing so you make your computer vulnerable to security threats and attacks. It is always recommended to install latest version of Firefox Web Browser and Update the browser to the latest version all the time.

Anyway, just go to https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ and mozilla firefox old version available to Download for you. All the way back to 2004.

IF you get the error “You’ve launched and older version of Firefox”..

How To Install Old Version Of Firefox Latest

DON’T create a new profile:

If you create a new profile will not have your bookmarks, lose your cookies and site specific settings and any extensions you had installed and enabled.

You can amend the target in the shortcut – add:

Reinstall Mozilla Firefox

-allow-downgrade

How To Install Old Version Of Firefox With Flash

After:

This will allow Firefox to start without having to create a new profile.

Then launch the application and then check for upgrade – it should update.

Install Old Version Of Firefox Android

After the update, remove the “-allow-downgrade“ info in the target and Firefox should be able to work properly.