Container Sets av bushfried

Container Sets lets you open the current tab in multiple Firefox Container tabs at once.

Instead of manually reopening the same page in different containers, you can define container groups and open them with a single click or keyboard shortcut.

Features

Open a tab in multiple containers at once

Configurable container groups

Keyboard shortcuts for the first three groups

Drag & drop to reorder groups (shortcut order follows group order)

Avoids duplicate tabs

Fully local – no network requests, no tracking

How it works

Create container groups in the options page

Right-click a tab and choose a group

Or use a keyboard shortcut to open the tab instantly

Container Sets stores all settings locally and does not collect or transmit any data.