Control personal device and local network permissions on Firefox for Android

Firefox for Android Firefox for Android 最終更新日時: 2週間, 2日 ago
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To protect your privacy and security, Firefox for Android asks for your permission when websites try to access apps and services on your device or local network. This change prevents websites from interacting with your phone or other devices on your network without your knowledge.

Why Firefox asks for permission

Some websites may attempt to connect to devices or services on your Android phone or your local network, like printers, routers, or smart home devices.

Malicious sites have used this to:

  • Track your identity across networks.
  • Scan for vulnerable devices on your Wi-Fi.
  • Interact with apps and services running on your phone.

To keep you safe, Firefox for Android shows a permission prompt anytime a site tries to make this kind of connection.

When Firefox asks for access

When a site tries to connect to:

  • Your device’s apps or services, or
  • Other devices on your local network

Firefox will display a prompt asking whether to allow or block access.

You can choose to:

  • Allow access just this time
  • Block access just this time
Tip: If you check Remember for this site, Firefox will remember your choice next time the site tries to connect.

What counts as a device or network connection?

Device apps and services

This refers to applications or services running directly on your Android device, such as:

  • System services
  • Installed apps that expose data or connections
  • Local development tools (for developers)

Local network devices

Devices connected to the same Wi-Fi or local network as your phone, including:

  • Routers
  • Printers
  • File servers
  • Smart TVs
  • Media streaming devices
  • IoT (Internet of Things) gadgets like smart lights or thermostats

Websites can potentially access or interact with these devices—Firefox helps you control that.

Manage permission requests in Firefox for Android

When a permission prompt appears near the top of the screen, you’ll be able to allow or block access. You can also manage saved permissions later in Settings.

View or change permission settings

  1. Tap the menu button (⋮) in Firefox.
  2. Tap Settings.
  3. Tap Site settings.
  4. Select either:
    • Device apps and services or
    • Local network devices
  5. You’ll see a list of sites that requested access.
  6. Use the menu next to each site to allow or block future access.
localpermissionandroid2

How permission prompts look

Device apps and services prompt

Firefox will show a dialog when a site tries to connect to services on your device.

devicenandroid

Local network devices prompt

When a website attempts to connect to another device on your network, you'll see a similar prompt.

localandroid

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