multi-account containers

The Firefox multi-account container add-on is very useful for creating isolated containers for various sites and groups of sites. I use it every day and love it. The add-on provides a simple way to map certain domains to always open in specific containers. This is useful, but it doesn’t work well when sites use the same domain for multiple web applications that you want to isolate. Google, for example, does this and hosts Google search and Google maps on the same domain, and the add-on will open both of them in the same container, without a way to separate them.

Here’s where the Containerise add-on comes handy. It supports mapping URLs to specific containers using glob and regex patterns. Using this, I can add the following glob pattern for my Google container in the ‘Containerise’ add-on to isolate all Google searches to the Google container.

!https://www.google.com/search*

This is useful to prevent my Google searches from being directly linked to my Google account logged in another container or outside the containers.