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To stop websites from asking to access your headset and controllers in Firefox, turn on Firefox’s global virtual-reality block: open Settings (called Preferences in some installations), find Virtual Reality under Privacy & Security → Permissions and data → Permissions, select Block new requests asking to access your virtual reality devices, and save. Firefox then rejects new requests without showing a prompt.
This setting does not automatically revoke sites that you previously allowed. Review the saved entries in the same dialog and change each one to Block or remove its exception. If you only want to stop one site, use that site’s Page Info → Permissions panel instead.
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The permission controls whether a website can use the browser’s WebXR connection to discover and communicate with connected virtual-reality hardware. It covers headsets and motion controllers, rather than ordinary display, audio, camera, or microphone access.
Mozilla describes the privacy purpose plainly: “Firefox doesn’t allow sites to access your headset without your permission to protect your privacy.” The permission is separate from camera and microphone permissions, so a site must request those independently.
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What a site can learn after you allow access
With VR access, Firefox may pass the requesting site information needed to render a scene and map controls, including:
- Headset and controller type and brand
- Display resolution, frame rate, and field of view
- Available controls and controller input
- Interpupillary distance (IPD) and lens adjustments
- Configured play-area dimensions and headset height
- The VR device’s position, orientation, and acceleration
Those details can help a site keep you inside your configured play area and adapt an experience to your hardware. Mozilla also warns that the combination can increase a site’s ability to identify a device uniquely.
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Granting VR access does not give a website camera images, video from a pass-through camera, microphone input, geographic position, or compass heading. A site that needs a camera or microphone must present separate permission requests, which you can manage independently.
How do I block all new VR requests in Firefox?
Use the global permission switch when you do not want new websites to ask at all. The setting applies to future requests across Firefox, while previously saved allowances require separate review.
- Open the Firefox menu and choose Settings. Some Firefox installations label this page Preferences.
- In the Settings search box, enter virtual reality. Alternatively, open Privacy & Security, go to Permissions and data, scroll to Permissions, and locate Virtual Reality.
- Click Settings… beside Virtual Reality.
- In Settings – Virtual Reality Permissions, select Block new requests asking to access your virtual reality devices.
- Click Save Changes.
After saving, a website making a new VR request receives a denial instead of a permission prompt. The page may continue in a normal two-dimensional browser mode if its developer provided one; a VR-only experience may not be usable without the hardware permission.
Why can an allowed site still use VR after the global block?
The global option blocks new requests. Firefox keeps existing entries that you previously set to Allow, so they can continue to work. In the Virtual Reality permissions dialog, inspect every listed origin and change an allowed entry to Block or remove the exception if you no longer want it to have access.
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Menu names and the precise location of the entry can vary between Firefox releases, but the stable concept is the Virtual Reality permission under Permissions. Mozilla’s WebXR permission documentation was updated September 6, 2026.
How do I block VR access for one website?
Use Page Info when one origin should be blocked but other sites should retain the opportunity to ask. This is useful if you occasionally use WebXR but do not trust or need VR on a particular site.
- Open the website in Firefox.
- Open the page’s Page Info dialog.
- Select the Permissions tab.
- Find the virtual-reality permission and clear Use Default.
- Select Block.
The decision is stored for that site. Other origins continue to follow their own saved decisions or Firefox’s global default.
How do I make Firefox ask again for one site?
Repeat the Page Info steps, clear Use Default, and choose Always Ask instead of Block. Firefox will keep a decision point for that origin rather than silently granting or rejecting its request.
Can I manage the current site from the address bar?
Firefox’s address bar can show a Permissions icon when the site has a saved status. Open it to inspect the stored virtual-reality decision. Clicking the X beside a status clears that saved entry and returns the site to Firefox’s default behavior.
Which blocking method should I use?
The right choice depends on whether you want a blanket privacy rule or selective WebXR access.
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| Choice | Privacy control | Convenience | Best use |
|---|---|---|---|
| Global “Block new requests” | Strong default; stops new prompts site-wide | Existing exceptions must be reviewed separately | You never want new VR requests |
| Per-site Block in Page Info | Precise control for one origin | Other sites can still prompt | You need VR on selected sites |
| Always Ask or a cleared status | Keeps a decision point for each request | More prompts | You use VR occasionally and decide case by case |
For the strongest “ask me nowhere” posture, enable the global block and then audit the saved list for old Allow entries. For occasional WebXR use, leave the global behavior available and block individual origins that should never receive hardware details.
What happens to a site when VR access is denied?
Firefox denies the WebXR hardware request, so the site cannot obtain the headset and controller information listed above. The visible result depends on how the site was built.
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- A site designed only for immersive VR may show an unavailable-device message or lose its immersive controls.
- A site that also needs camera or microphone data may still ask for those separate permissions.
Blocking VR therefore does not mean that every page becomes unusable; it limits the hardware capability while leaving ordinary web content available.
How can I remove every previously granted VR exception?
The global switch alone is not an exception-cleanup tool. Use the Virtual Reality permissions dialog to review the saved origins and change each one that is currently allowed.
- Return to Settings (or Preferences) and open the Virtual Reality Settings… dialog under Permissions.
- Read the site list rather than assuming the global setting changed it.
- For each origin you no longer trust, choose Block or remove its saved exception.
- Save the changes, then reload an affected page if it was already open.
Removing a status is useful when you want Firefox to evaluate that site using the current default instead of preserving an old decision. A site that was already connected may need to be reloaded before its WebXR session reflects the new permission.
What privacy trade-off does allowing VR create?
Allowing access can make an immersive experience fit your headset, lenses, controls, and play space accurately. The trade-off is that the hardware profile and motion-related values can form a more distinctive combination than a generic browser identity.
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The information is not equivalent to a live view of your room. Play-area dimensions and headset pose can describe aspects of how the device is configured and moving, but the VR permission itself does not transmit camera imagery, pass-through video, location, or compass data.
Choose Block when the experience does not need immersion, when you do not recognize the origin, or when minimizing device fingerprinting matters more than automatic VR setup. Choose Always Ask when you want to evaluate the origin and the requested experience each time.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should I check if the setting seems ineffective?
A prompt still appears
Confirm that you selected the global option stating Block new requests asking to access your virtual reality devices and clicked Save Changes. Then check the site’s Page Info entry: a previously saved status can behave independently of the new-request default.
A site still enters VR
Look for an Allow entry in the Virtual Reality dialog and change it to Block or remove it. A page that already had an active session may also need a reload after the permission is changed.
The site no longer works
That may be expected for an experience built around immersive WebXR. If the site offers a 2D mode, use it without granting VR access. If you only blocked one origin, you can switch that origin to Always Ask and grant access selectively when you recognize and need it.
The menu label is different
Firefox uses Settings in many installations and Preferences in others. Search Settings for “virtual reality” first; if search does not locate it, follow Privacy & Security → Permissions and data → Permissions and look for the Virtual Reality row.
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Can blocking VR access protect me from every form of sensor access?
No. It controls the browser’s virtual-reality device permission only. Camera, microphone, and any other capability that Firefox presents as a separate permission still needs its own decision, so review those requests on their own terms.
Frequently Asked Questions
If I remove a site’s saved VR status, will it be blocked automatically?
It returns that origin to Firefox’s default behavior. With the global new-request block enabled, the site follows that block; with a prompting default, Firefox can ask again.
Does denying VR permission also revoke camera or microphone access I previously granted?
No. Firefox treats VR, camera, and microphone as separate permissions. Changing the VR entry does not change an existing camera or microphone decision.
Why does a blocked site show no permission prompt at all?
That silent behavior is intentional when the global “Block new requests” option is active. Firefox rejects the new VR request instead of interrupting you with a dialog.
Can I restore VR access later without resetting Firefox?
Yes. Reopen the Virtual Reality permissions dialog and change the global default, or set the individual origin to Always Ask or Allow in Page Info. The change applies after the page evaluates permissions again, which may require a reload.
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