# Install and Use the Seedr Firefox Add-on

Canonical URL: https://www.seedr.cc/pulse/articles/674853522f1468b50cf5179e-firefox-addon/
Updated: 2026-10-24T17:53:33.206Z

Install Seedr's official Firefox add-on and send any file link or page URL to your cloud in one click. Setup steps, permissions, and fixes for common issues.

The Seedr Firefox add-on turns any file link or direct download URL into a right-click → **Send to Seedr** away from hitting your disk. No local download app, no open tabs on a sketchy site, no waiting for the file to finish on your home connection.

## What this gets you

- A Seedr icon in your Firefox toolbar. Click it to paste a link and add it to your Seedr account.
- A right-click menu entry on any link: **Send to Seedr**. File links, direct file URLs, you name it.
- Automatic detection of file links on pages you browse — the toolbar icon lights up when a supported link is found on the current page.
- One-click login with your existing Seedr session cookies, so no password re-entry.

## What you need

- Firefox 115 or later (desktop). Firefox for Android supports the add-on too on recent builds.
- A [Seedr account](<https://www.seedr.cc/signup/>) — the Free tier is enough to install and test the add-on. Premium gets you faster grabs and higher concurrent-transfer limits.
- Permission to install a browser extension (on work machines this may be policy-blocked).

## Setup, step by step

### 1. Install from addons.mozilla.org

1. Open Firefox.
2. Visit the [Seedr add-on page on addons.mozilla.org](<https://addons.mozilla.org/en-US/firefox/addon/seedr-cc/>) (search "Seedr" in the Firefox Add-ons site if the direct link changes).
3. Click **Add to Firefox**.
4. Firefox shows the permissions prompt. Seedr's add-on asks for: - Access to your data for seedr.cc and related domains (to log you in). - Access to data on all websites (needed to detect supported links and send-to-Seedr on any page you right-click).
5. Click **Add**.

### 2. Sign in

1. Click the Seedr icon in the toolbar.
2. It opens seedr.cc. Sign in (email + password, or the social-login provider you used).
3. After sign-in, the add-on picks up your session. The icon turns active.

You do not paste an API key. The add-on uses your browser session.

### 3. Try it — three ways to send to Seedr

**Right-click a file link**

On any site, right-click the link you want to save → **Send to Seedr**. A small toast confirms the link was added. Open your Seedr tab to see it queued.

**Use the toolbar icon on a page with supported links**

Open a page that has a link to a file. The Seedr icon shows a small badge if the add-on detects one. Click → **Add to Seedr**.

**Paste a direct link**

Click the toolbar icon → paste the URL you want to save. Hit **Add**. Seedr fetches the file into your cloud.

### 4. Pin the icon

Right-click the Firefox toolbar → **Customize Toolbar** → drag the Seedr icon to a visible slot if it landed in the overflow menu. Useful for muscle-memory right-click flow.

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## Troubleshooting

- **"Send to Seedr" menu item does nothing** — you are not signed in. Click the toolbar icon, sign in on seedr.cc, then reload the page and retry.
- **Add-on disabled after a Firefox update** — Firefox occasionally revokes extensions that have not been updated for manifest v3. Reinstall from addons.mozilla.org; the add-on ships an updated build.
- **Links open a desktop app on your computer instead of going to Seedr** — some OS protocol handlers grab certain URL types at the system level. Use **right-click → Send to Seedr** from the add-on's context menu; do not left-click.
- **Works in normal browsing, fails in Private Windows** — extensions are disabled in Private Browsing by default. Fix: about:addons → **Seedr** → **Allowed to run in Private Windows** → on.
- **"Add failed: not logged in" while you're visibly signed in** — the extension's session cookie diverged. Open seedr.cc in a normal tab, sign out, sign back in. Or clear cookies for seedr.cc and re-auth.
- **Corporate / school network blocks the add-on request** — your firewall is filtering the API call to seedr.cc. Try on a different network to confirm, then ask IT to allow seedr.cc and www.seedr.cc.
- **Android Firefox doesn't show the add-on** — only the main Firefox build supports extensions on Android, and only a curated list historically. If it is not in the Android add-ons list yet, use the Seedr PWA from mobile Firefox instead.

## What works well, and known limits

**Works well**

- One-click handoff of any file link from any page.
- Direct-link fetch for big file downloads (distro ISOs, large archives).
- Works alongside Firefox's container tabs — the add-on uses the currently-active container's cookies.

**Known limits**

- **No UI for managing existing Seedr tasks** inside the add-on. It adds things; it does not replace the web UI. Use the Seedr tab or PWA to manage running transfers.
- **Only one Seedr account at a time.** The add-on uses your active Firefox session on seedr.cc.
- **Manifest v3** behaviour: the add-on uses a service worker, so the first click after a browser restart may be slightly slower while the worker spins up.
- **Free-tier limits apply.** Anything you add from the add-on counts against your Free storage and bandwidth like any other transfer.

## Wrap

Right-click a link, it goes to the cloud. That is the whole point of the add-on. Install once, send forever.

### Send your first link to the cloud

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