Firefox Multi-Account Containers is an extension for the Firefox web browser that helps users manage the different parts of their online life. It enables users to create and use multiple "containers" to separate online activities like shopping, banking, and work. Each container keeps its own set of cookies, local storage, and settings, while allowing the user to switch between them with a single click. This prevents tracking from websites and creates a better privacy experience. Additionally, it allows users to easily switch between multiple accounts for the same website, allowing for more efficient and secure online activities.
The last discontinued version, 3.2.3, was released on February 18, 2017. The latest version is compatible with Firefox 52. You can still download it from here: https://github.com/hultmann/multifox/releases/tag/3.2 .3 More information about the discontinuation: https: //github.com/hultmann/multifox/issues/215