Isolating your online activity - Firefox Multi-Account Containers
One way to minimize tracking and improve your online privacy is to store as few browsing cookies as possible on your device. However, in websites such as your email client or your note-taking web application, it's practical to have cookies stored so that you don't have to login each time you visit. In this guide you'll learn how to install and setup Firefox Multi-Account Containers to keep parts of your online activity isolated from each other, thus reducing your digital footprint.
Like any other add-on, install Firefox Multi-Account Containers by visiting the Mozilla Firefox Add-ons page and clicking Add to Firefox (Fig. 1) and then clicking on Add when prompted (Fig. 2).
Set up a container
You can create a container for any website, and assign a website to multiple containers. In this section, you'll learn how to set up a container for Twitter, but the steps are similar for other websites.
First, create the container by clicking the icon and then go to Manage containers > New container. Enter the name for your container and press OK (Fig. 5).
When you are browsing in another container and navigate to a Twitter link, you'll be automatically placed in the Twitter container. The first time this happens, you'll be asked if you want to open the link in the designated container (Fig. 8). To do so automatically from now on, tick the Remember my decision for this site box, and then click on Open in Twitter Container.