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.
