Often when there is a problem with a Firefox update, people look for a way to go back to the previous version. That usually doesn't solve the problem and will make your computer and personal information vulnerable to attack. This article gives you some alternatives to downgrading and links to old versions of Firefox if you do choose to downgrade.
How to Check your Ubuntu Version | Linuxize Aug 28, 2019 Index of /releases/warty - Ubuntu Ubuntu 4.10 (Warty Warthog) Select an image. Ubuntu is distributed on two types of images described below. Install CD. The install CD allows you to install Ubuntu permanently on a computer. There are three images available, each for a different type of computer: Intel x86 install CD For almost all PCs. 10 Best Lightweight Linux Distros For Old Computers [2020 Jun 25, 2020 The leading operating system for PCs, IoT devices - Ubuntu
Ubuntu releases are made semiannually by Canonical Ltd, the developers of the Ubuntu operating system, using the year and month of the release as a version number.The first Ubuntu release, for example, was Ubuntu 4.10 and was released on 20 October 2004.
Old Version of Ubuntu 6.10 (Server) Download - OldApps.com Oct 26, 2006
Using Old Ubuntu Versions & Security Risks | Linux.org
Canonical releases new versions of Ubuntu every six months and supports Ubuntu for eighteen months by providing security fixes, patches to critical bugs and minor updates to programs. LTS (Long Term Support) versions, which are released every two years, are supported for three years on the desktop and five years for servers.