Open external links in a container Firefox

Open external links in a container

By: Denys H Add-on
This extension enables support for opening links in specific containers using custom protocol handler. It works for terminal, OS shortcuts and regular HTML pages.

Features & Capabilities

The "Open external links in a container" Chrome extension enables users to open URLs in designated containers using a custom protocol handler. This feature enhances browsing by allowing isolated environments for different links, improving privacy and organization.

Key features include support for command line and internal invocations, on-the-fly container creation with customizable colors and icons, tab pinning, and reader mode support. The extension seamlessly integrates with other browser extensions and offers a handy launcher script for quick command line usage. It's ideal for users looking to manage their browsing contexts efficiently and securely.

Explore the source code or download the launcher script from the official GitHub repository to maximize your browsing workflow.

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:
Denys H
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/open-url-in-container/
Website:
https://github.com/honsiorovskyi/open-url-in-container

User Reviews

The add-on is highly praised for enabling container-specific opening of external links via bookmarks and for scriptable, automated workflows. Users can reduce prompts with a config flag, and see benefits for multi-account use. Recurrent downsides include Firefox protocol-handler warnings, Windows compatibility issues, occasional activation hurdles on older Firefox versions, and occasional bookmark-saving UX quirks.
Pros
  • Opens external links and bookmarks in a specific Firefox container (ext+container)
  • Bookmark-based and scriptable container routing for automation
  • Option to suppress per-link prompts by enabling a config flag in about:config (network.protocol-handler.external.ext+container)
  • Useful for multi-account workflows and separating site access within the same browser
Cons
  • Firefox protocol-handler warnings/prompt annoyances after recent updates
  • Windows users report protocol handling compatibility issues (reliability problems on Windows)
  • Activation/setup issues on older Firefox versions (possible inability to activate)
  • Bookmark creation/saving for ext+container can be unclear or non-intuitive
  • UX quirks such as the bookmark path affecting the page icon (disappears)
Recent reviews
by Fi*****, 2026-01-28

I wonder why basic functionality like this aren't implemented in containers by mozilla! Great work, with additional option 'network.protocol-handler.external.ext+container' set to true in about:config which removes prompt on every link opening with this extension. Allows to create a bookmarks which opens in specific containers. Thank you!
by an*****, 2025-08-20
View all user reviews ›

Is Open external links in a container 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.

Open external links in a container does not require any sensitive permissions.

Risk impact analysis details
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.

Open external links in a container 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 Open external links in a container Alternatives

Here are some Firefox add-ons that are similar to Open external links in a container: