Containerise Firefox

Containerise

By: kintesh
Automatically open websites in a dedicated container. Simply add rules to map domain or subdomain to your container.

Features & Capabilities

Containerise is a powerful Firefox extension that automatically opens websites in dedicated containers. By simply adding rules that map domains or subdomains to containers using an easy CSV-based configuration, users can ensure consistent web compartmentalization, enhancing privacy and management.

Users can define mappings using basic domains, glob patterns, or regex to tailor the opening behavior for all matching sites. For example, mapping amazon.co.uk to a "Shopping" container ensures all Amazon UK visits open isolated from other browsing activities. This functionality is disabled in private mode, respecting user privacy preferences. Containerise streamlines container setup, making multi-container browsing effortless and efficient.

User Growth & Download Statistics

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
kintesh
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/containerise/
Website:
https://github.com/kintesh/containerise/issues

User Reviews

Users praise Containerise for reliable performance and as a strong replacement for Multi-Account Containers, with powerful URL/path-based rules and good handling of subdomains. It fits well with privacy workflows and bookmarks. However, maintenance appears inactive, cross-device syncing is missing, and users report bugs and occasional data loss. Regex/documentation are limited, and there are compatibility issues with Firefox updates. Overall, it’s valuable but has notable stability and synchronization drawbacks.
Pros
  • Reliable and generally smooth performance; widely considered to work well.
  • Strong replacement for the Firefox Multi-Account Containers extension; improve workflow.
  • Powerful rule-based URL/relative-path matching to assign sites to specific containers.
  • Effective handling of subdomains and multiple accounts with per-site rules.
  • Easy to use and integrates well with privacy workflows, including bookmark support.
Cons
  • Not actively maintained; development appears inactive.
  • Lacks cross-device sync for container/URL rules; manual setup on each install.
  • Buggy/unstable behavior reported (UI issues, tab loops, occasional data loss).
  • Regex support is limited (no flags, limited examples) and documentation is sparse.
  • Compatibility issues/regressions with Firefox updates causing features to stop working.
Recent reviews
by Fi*****, 2026-03-29

Its a great plugin idea but it doesn't really work as intended. After setting up Zen, leaving idle for a day and returning back to to it, Zen erased by pinned tabs on click. I could click any pinned tab and it was like closing them. This behaviour was reproducible until I deactivated this plugin.
by ni*****, 2025-10-27

by *****, 2025-09-09
View all user reviews ›

Is Containerise Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Containerise requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Containerise has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best Containerise Alternatives

Here are some Firefox add-ons that are similar to Containerise: