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Getting Started
This guide helps you install and get value from Temporary Containers Plus in under two minutes.
- Install from AMO: https://addons.mozilla.org/firefox/addon/temporary-containers-plus/
- After installation the toolbar icon appears (a page symbol). If it’s hidden: right‑click toolbar > Customize > drag it into place.
Every new temporary container has completely isolated storage (cookies, localStorage, cache, etc). When the last tab in that container closes, the container is eventually deleted (default: 15 minutes delay so you can Undo Close Tab). Result: cross‑site tracking is harder and leftover junk doesn’t accumulate.
Open Add-on Options:
- Right‑click the toolbar icon > Manage Extension > Preferences (or open about:addons > Extensions > Temporary Containers Plus > Options)
- In General > Global Settings: tick “Enable Automatic Mode”.
Automatic Mode makes all new tabs (unless a site is assigned to a permanent container via Firefox Multi‑Account Containers) open in a fresh temporary container.
Set this under Advanced Settings > Automatic Mode:
- On Tab Creation (default): Strongest isolation. New blank tab is immediately replaced by a temporary container before any site loads.
- On Tab Navigation: Slightly less strict; useful only if your system is extremely slow creating containers or you notice lost keystrokes in the URL bar.
Open a few sites in new tabs. Each tab’s container name will show a prefix like tmp-123. Close a tab, wait a bit—its container is cleaned up automatically.
If you want a site to retain login state:
- Install Mozilla Multi‑Account Containers (MAC).
- Open the site in a MAC permanent container.
- Use MAC’s “Always open in” for that site.
- Automatic Mode will now respect that and still isolate everything else.
(Default mappings; change in Firefox Add-ons Shortcut settings)
- Alt+C – New Temporary Container tab
- Alt+O – Reopen current page in new Temporary Container
- Alt+P – New History Deletion Temporary Container (after enabling that feature)
- Alt+X – New tab in current container
- Alt+N – New No‑Container tab
- Configure Global Isolation if you want link navigations to auto‑isolate when leaving a domain.
- Add specific Per‑Domain Rules only for exceptions or stricter behavior.
Leave mouse click isolation alone at first. Navigation isolation usually covers what you need. Add mouse click rules later only if you have a concrete use case.
Once you like your setup: go to Export/Import page in options and export to a file or Firefox Sync so you can restore later.
See Troubleshooting or enable the Debug Log and open an issue: https://github.com/GodKratos/temporary-containers/issues
Next: Learn how isolation decisions work in Global Isolation.