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How to Save Firefox Add-ons: Sync, Back Up, or Export a List

Firefox add-ons can be synced, backed up with broader profile data, or listed for later reinstallation. Choose the method that matches what you need to keep.
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To save Firefox add-ons, choose the method that matches what you need: use Firefox Sync to keep add-ons synchronized across devices, Firefox’s built-in backup or a copied desktop profile to preserve broader browser data, or an add-on list exporter when you only need a checklist and reinstall links. These methods are not interchangeable, and none of the cited guidance guarantees that every extension’s separate settings or data will be preserved.

What does “export Firefox add-ons” mean?

It can mean three different things: keeping add-ons in sync on another Firefox device, saving a restorable copy of Firefox profile data, or making a list of extensions to reinstall later. Pick the route by the result you want:

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  • Ongoing synchronization: Firefox Sync uses a Mozilla account to sync add-ons and other selected browser data.
  • A saved copy: Firefox’s built-in backup, or a manual desktop profile copy, preserves add-ons as part of broader Firefox data.
  • A portable checklist: Add-ons Exporter creates an HTML report that can help you reopen extension listings and choose what to install.

A list of names and links is not a copy of installed extension files or a guarantee that an extension’s private data will be restored.

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How do I save Firefox add-ons for a new computer?

For most moves, start with Mozilla’s built-in backup guidance. Mozilla describes backup as a way to save Firefox data, including extensions, and restore it later. See Mozilla’s Firefox backup and restore guidance for the current interface and steps.

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The backup tool offers a choice between basic data and all data. The all-data option includes sensitive information and requires a password; Mozilla says sensitive data is encrypted and password protected. Review the options carefully and choose the backup scope that fits what you intend to transfer.

Mozilla recommends the built-in backup for moving Firefox data to a new device. Once you have the backup file, follow Mozilla’s restore instructions on the destination device rather than treating the file as an add-on installer.

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When should I use Firefox Sync instead?

Use Sync when your goal is to keep Firefox data, including add-ons, synchronized through a Mozilla account across devices, profiles, or Firefox versions. It is an ongoing account-based synchronization option, not a standalone export file. Mozilla’s Firefox Sync setup instructions explain how to connect devices and select what to sync.

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Choose backup instead when you want a saved copy that you can restore. Sync and backup serve different purposes: one synchronizes through an account; the other creates a backup to restore.

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Can I copy a Firefox profile manually?

Yes. Mozilla documents manual profile-folder copying for desktop Firefox on Windows, macOS, and Linux. It can carry extensions as part of the wider profile, but it is a profile transfer—not an extension-only export. Mozilla recommends its built-in backup for most moves to a new device. Follow the platform-specific instructions in Mozilla’s profile backup and restore guide; do not improvise by copying isolated extension files or registry entries.

Mozilla’s guidance says mobile users should use Sync rather than the desktop profile-copy procedure.

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How can I export a list of extensions to reinstall later?

If you need an inventory rather than a restorable Firefox copy, Add-ons Exporter can create an HTML report from selected installed add-ons. Its Mozilla Add-ons listing describes selecting items from enabled and disabled sections, exporting the selection, then importing the report in another supported browser or profile to choose listings to open.

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  1. Select the add-ons you want in the exporter, including enabled or disabled entries as needed.
  2. Export the selection as an HTML report.
  3. On the other browser or profile, import the report and select the entries whose listings you want to open.
  4. Review each listing and install the add-on yourself if you still want it.

The extension does not silently install add-ons. Its listing explains: “Firefox does not allow extensions to install other extensions automatically.” Add-ons Exporter’s listing names Firefox, Zen, LibreWolf, and Waterfox as Gecko-based browser targets; check the listing for current compatibility before relying on it. The listing shows version 1.2.0 and a last-updated date of September 1, 2026; these are product details that can change.

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The listing also says the extension does not collect, store, or transmit personal data and lists permissions related to downloads and download history, extension usage and theme management, plus optional access to addons.mozilla.org. Those are the developer’s disclosures; check the current permissions on the listing before installing.

How do I find the IDs of installed add-ons?

To identify extensions or reconstruct a checklist, open about:support and look under Add-ons. Mozilla documents this and related extension-management details in its guide to managing Firefox add-ons. An ID can help identify an item, but it is not a backup or an installer.

Will my extension settings and data come along?

Do not assume that a list export preserves extension settings, or that every extension’s separate data will be included in a profile transfer or backup. The cited backup and exporter descriptions support saving Firefox data or generating reinstall links; they do not establish a blanket guarantee for every extension’s private data.

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If a particular add-on’s settings matter, check whether its developer provides its own export and import function. Treat that as a separate step from saving Firefox itself.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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