FAQ

Frequently Asked Questions

A concise collection of the most common questions. Each answer links to the deeper guide or anchor.

1. How do I get maximum isolation with minimal tweaking?

Enable Automatic Mode (Options > General). It opens every new unassigned tab in a fresh Temporary Container. See: General Settings › Automatic Mode.

2. Why are some clicks or navigations not opening in a new container?

Some in‑page script navigations are not real browser-level navigations and can't be intercepted reliably. Details & edge cases: Isolation Edge Cases.

3. Do I still need Global Isolation if Automatic Mode is enabled?

Often no. Automatic Mode already isolates new tab contexts. Use Global Isolation rules only if you also want to re-isolate when moving between domains inside the same tab session.

4. How do I keep certain sites logged in?

Install Multi‑Account Containers and assign those domains to a permanent container ("Always open in"). Automatic Mode respects these assignments and isolates everything else.

5. Can I reopen a normal tab in a Temporary Container (or convert)?

Yes. Use the toolbar icon popup (Actions) to reopen current tab in a new Temporary Container or convert between temporary and permanent.

6. How do I export or back up my settings?

Use Export & Import in Options. You can export to file or rely on Firefox Sync (if enabled). See Export & Import page.

7. Why did my browsing history disappear?

If you enabled History Deletion Containers, tabs opened in those containers cause history entries to be deleted. Review the risks section in History Deletion page before enabling.

8. How can I inject a script or cookie only for one site?

Use Script Injection or Cookie Injection advanced pages. Both allow domain-scoped entries; Script Injection may need the additional permission prompt (webNavigation) the first time.

9. Are random container colors important for privacy?

No. They're purely visual to help distinguish containers. Functionality is unaffected. You can choose static colors/icons if you prefer.

10. Will this stop all fingerprinting and tracking?

No extension can fully prevent fingerprinting. Temporary Containers significantly limits cross-site state tracking, but browser/API level fingerprinting vectors remain. See Browser Fingerprinting.

11. Does this replace site-specific containers I already created?

It coexists. Permanent (MAC) containers remain for sites you pin. Temporary Containers handles everything else on-the-fly.

12. How do I reset everything if I misconfigured settings?

In Advanced Misc settings (Options) there's a reset storage function. Backup (export) first if you may want to restore.

13. Can I disable isolation temporarily?

Yes. Use the toolbar popup global toggle (circle icon) if enabled, or disable Automatic Mode briefly in General Settings.

14. Why can't the addon isolate pages on addons.mozilla.org?

Firefox blocks extensions from modifying that domain (platform security restriction). This is expected.

15. Where can I report bugs or request features?

Open an issue on GitHub: https://github.com/GodKratos/temporary-containers/issues (include debug log when relevant).

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Suggestions for additional FAQ entries welcome. Keep this list short; deep detail belongs in feature pages.