Firefox fans have long heralded the browser’s Multi-Account Containers feature as an exclusive that users of Chromium-based browsers did not have. Soon, Brave Brower users may also make use of a Containers feature, ending Firefox’s exclusivity.
Brave has begun rolling out native Container support as an experimental flag in its desktop browser as of April 2026. It allows users of the browser to isolate web sessions better and even get options to open multiple accounts of the same site in a single browser window without using clunky workarounds or third-party extensions.
The Core Concept: Session Isolation
At its core, the Containers feature creates isolated islands within a single browser window. Each container acts as a separate, sandboxed environment. Data, including cookies, local storage, or cached files, can’t be seen or accessed by tabs in another container or by the default container-less environment.
Since data is sandboxed, it is possible to sign-in to the same site in different containers in the same browser window using a single profile, or to open a site with an account and without one at the same time. Furthermore, since data is separate, tracking becomes less effective as the trackers can only see what is going on in a single container and not the entire browser.
Containers works with tab groups and all core features of the browser, including browser extensions.
The feature is available in Brave Nightly only at the time. You need to load brave://flags, search for Enable Containers, and toggle the feature to Enabled to start using it. A restart of the browser is required as usual before it becomes available.
Since this feature is in Nightly, it may have bugs and may not be as polished as the stable version that Brave Software plans to ship in a later version of the browser.
When I first heard about Firefox containers I was rather reluctant… until I discovered their potentialities. So Firefox has been the only browser to offer this feature until, now, with Brave? Well, another solid reason to prefer either of the two over others.
Here with Firefox I’ve been using first ‘Temporary Containers’ together with ‘Containerise’ extensions before switching to ‘Temporary Containers Pus’ and ‘Container Redirect’ when the former were no longer updated (exactly the same functionalities). Fantastic in their contribution to privacy. These two extensions together with and just after ‘uBlock Origin’ are the leading trio I’d always install first on a new browser… given the browser is Firefox or… Brave as it seems.