Short answer: NotebookLM Tools has an official Firefox add-on on addons.mozilla.org. Install it from the official listing, pin it to your toolbar, and you get the same features as the Chrome version — source folders, bulk import, backup and restore, saved prompts, and every other capability.

Firefox users sometimes assume NotebookLM extensions are Chrome-only, since many Chrome extensions never ship a Firefox build. NotebookLM Tools has one. This guide covers the install, what's identical to Chrome, and a few Firefox-specific quirks.

Installing NotebookLM Tools on Firefox

The install is short:

Open addons.mozilla.org/en-US/firefox/addon/notebooklm-tools/ in Firefox.
Click the blue Add to Firefox button.
Firefox shows a permissions prompt explaining what the extension can access. Review it and click Add.
You'll see a confirmation that NotebookLM Tools was added. Optionally check Allow this extension to run in Private Windows if you use private browsing for research.
Open a new tab, navigate to notebooklm.google.com, and the extension is active.

You do not need to create an account, sign in, or configure anything. The extension works immediately with your existing NotebookLM notebooks.

Does It Do Everything the Chrome Version Does?

Yes. The Firefox build is feature-complete:

Source folders — organize sources inside each notebook.
Bulk import — paste dozens of URLs at once or add every open tab.
Right-click import — send any page to NotebookLM from the context menu.
Backup and restore — export source lists, restore them into new notebooks.
Saved prompts and slash commands — reusable prompt library across notebooks.
Studio generation helpers — one-click audio, mind map, report, and quiz generation.
Source freshness sync — detect and refresh stale web sources.
Cross-notebook search — find content across your entire library.

There is no feature gap between the Chrome and Firefox builds. Updates ship to both stores together. The optional Pro license works the same on both — one license covers any browser you install on.

Firefox-Specific Tips

Pin the extension. Firefox hides unpinned extensions behind the puzzle-piece icon. Click that icon, find NotebookLM Tools, and click the pin icon so it lives directly in the toolbar. Every one-click action (add current tab, open extension panel) is faster with the icon visible.

Private browsing. If you do research in Firefox Private Windows, enable the extension for private mode. Go to about:addons, find NotebookLM Tools, click the three-dot menu, and toggle Run in Private Windows. Nothing is logged — the extension behaves the same as in a normal window.

Tracking protection is fine. Firefox's Enhanced Tracking Protection doesn't interfere with NotebookLM Tools. The extension only talks to notebooklm.google.com and your own tabs — there are no third-party trackers to block.

Multi-account containers. If you use Firefox Multi-Account Containers to separate work and personal Google accounts, NotebookLM Tools respects the container context. Each container has its own NotebookLM session, and the extension adds sources to whichever account is active in the current tab.

Troubleshooting

The extension doesn't show up on NotebookLM. Reload the NotebookLM tab after installing. Firefox sometimes doesn't inject newly-installed extensions into tabs that were already open.

"Add to Firefox" button is greyed out. You may be on the mobile version of Firefox or an unsupported channel. The extension supports Firefox Desktop (stable, Developer Edition, and Nightly). Firefox for Android is not currently supported.

Permissions prompt looks scary. NotebookLM Tools asks for access to notebooklm.google.com and the ability to read tabs you explicitly send to NotebookLM. It does not request access to every site. Review the permissions listing on the official Firefox Add-ons page for the exact list.

Extension disappears after a Firefox update. Firefox occasionally disables extensions after major updates until you confirm them. Check about:addons — if NotebookLM Tools is marked as disabled, click Enable.

It works on Chrome but not Firefox. Make sure you installed the Firefox build, not a Chrome .crx file. Firefox and Chrome extensions are not interchangeable. Use the link from addons.mozilla.org directly.

Private browsing blocks the extension. By default, Firefox extensions do not run in Private Windows. Enable private browsing access in about:addons as described above.

Frequently Asked Questions

Is the Firefox extension official?

Yes. It's published by the same team as the Chrome version and distributed through Mozilla's official addons.mozilla.org store. It passes Mozilla's review process on every update.

Does it cost anything?

No. Installation is free and every feature works without a license. The optional Pro license adds benefits like removing the support banner, and one license covers both Chrome and Firefox.

Will it slow down my browser?

No. The extension only runs on notebooklm.google.com and when you explicitly send a tab to NotebookLM. It has no background polling or content script injection on other sites.

Can I use it on Firefox for Android?

Not currently. Firefox for Android has limited extension support, and NotebookLM Tools targets desktop workflows. Use a desktop Firefox install.

Does it work on Firefox forks like LibreWolf or Waterfox?

Generally yes, as long as the fork supports WebExtensions and addons.mozilla.org installs. We test against mainline Firefox, so behavior on forks is best-effort.

Same Extension, Same Workflow

If you've been running NotebookLM Tools on Chrome and are switching to Firefox, the workflow is identical. Install from the official Firefox Add-ons page, pin the icon, and every feature works the way you expect.

Related articles:

How to Organize NotebookLM Sources with Folders — The source folder feature that works identically on Firefox.
How to Add the Current Tab to NotebookLM Instantly — One-click tab capture, same on Chrome and Firefox.
NotebookLM Tips #6: Backup and Restore — Back up your notebooks regardless of browser.