Trezor Bridge is a small background service that lets web pages talk to a Trezor hardware wallet on your Windows PC. It is aimed at people who manage their Trezor device through a browser, such as Trezor Suite in web mode, and who want a reliable local link between the page and the hardware. If you only keep coins on a device and never open a browser interface, you may not need it at all.
The program is free and released under the LGPLv3 open source license, so its code is public for anyone to inspect. The current release is 2.0.27, and the most recent code update was made in March 2025. That makes it a recently updated tool rather than an abandoned one, which matters for software that sits between your browser and your hardware wallet.
How the Connection Works Step by Step
A Trezor hardware wallet cannot simply be read by any website. The browser needs a trusted path to the USB port, and that path is controlled by security rules. Trezor Bridge sits on your computer and acts as the middle layer between the web page and the device.
A typical session starts when you open a browser page that uses Trezor Suite in web mode. The page sends a request to the local service running on your machine. The service forwards that request to the Trezor over the USB connection, then returns the answer to the page. You see the result in the browser, while the signing and device interaction happen on the hardware itself.
Because the bridge runs locally, traffic does not need to leave your computer to reach the device. That is one reason it is designed as a small service rather than a full application. It stays in the background and only needs to be running when you use a browser to manage your Trezor.
Why Browsers Need a Helper for Hardware Wallets
Browsers isolate websites from one another and from your computer for good reason. A web page should not be able to freely talk to any USB device you plug in. WebUSB was created to allow controlled access, but it has limits that affect hardware wallets.
The main limits are browser support and coordination. Firefox does not allow WebUSB at all, so pages running there cannot reach the device through that feature. WebUSB also does not manage access between different domains, which can become a problem when several sites want the same hardware. A local helper gives the browser one predictable place to send requests.
For a hardware wallet user, the practical result is that the interface stays in the browser while the keys remain on the device. Understanding this split helps you recognize what the bridge does and what it does not do. It moves messages; it does not replace the security of the hardware wallet itself.
Who Should Use Trezor Bridge and When
The most typical user is someone with a Trezor who prefers managing the device through a browser on a Windows PC. For example, a person who opens Trezor Suite in web mode to check balances, review transactions and confirm actions on the device would need the bridge running. The same applies to people who work from Firefox and cannot rely on WebUSB.
Owners of older Trezor models are another group. If your device runs firmware from 2018 or earlier, the connection path is different, and the service becomes part of a setup that works reliably. Users who switch between several browser profiles may also notice that a single local service simplifies the arrangement.
Some readers are curious developers. Because the project is open source and written in Go, it can be read, studied or built from its repository. Most people, however, simply want a dependable connection and do not need to touch the code at all.
Key features
Browser Bridge for Web Pages
Firefox Compatibility
Support for Older Devices
Coordinated Access to the Device
Supported coins
Trezor Bridge is designed for Trezor hardware wallets. It works as a connection layer, so the assets you can manage depend on what your Trezor device and the software you use with it support. The bridge itself does not decide which coins are available.
How to install Trezor Bridge on Windows
PS> winget install SatoshiLabs.TrezorBridge- 1
Check your Windows version
Use a version of Windows that is still supported by Microsoft. Windows 7 and older versions are not officially supported for this program. It may run on them, but there is no guarantee, so an up-to-date system is the safer choice.
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Install with winget
Open PowerShell or Windows Terminal and run the command winget install SatoshiLabs.TrezorBridge. Windows Package Manager will fetch the package and install it. Wait for the confirmation message before moving on.
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Or download the installer manually
If you prefer not to use winget, download only from the official website at https://wallet.trezor.io/#/bridge or from the GitHub Releases page of the trezord-go project. Choose the Windows installer that matches your system.
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Verify the downloaded file
Compare the SHA-256 checksum of the file with the value published alongside the release. You can also check the digital signature in the file properties. Do not run the installer if the checksum or signature does not match.
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Connect your device and test
Plug in your Trezor, open your browser and load Trezor Suite in web mode. Approve any prompts that appear on the device screen. If the page does not detect the hardware, check that the bridge is running and that the USB cable is connected directly.
System requirements
- Windows 7 and older versions are not officially supported; the program may run on them, but there is no guarantee.
- A Trezor hardware wallet to connect to the browser interface.
How to use Trezor Bridge
Trezor Bridge works mostly in the background, so using it is about connecting the device and opening a supported browser page. Follow these steps for a typical session.
- Install Trezor Bridge using winget or the official installer, then restart your browser if it was open during installation.
- Connect your Trezor to a USB port on your computer with the original cable.
- Open your browser and go to Trezor Suite in web mode.
- Wait for the page to detect the device. The status should show that the hardware is connected.
- Unlock the device with your PIN when asked, entering it on the computer keyboard as the page prompts.
- Review each action on the device screen before confirming. Never approve a request you did not start yourself.
- When you finish, close the browser page and unplug the device.
If the device is not recognized, first check the cable and port, then confirm that the bridge is running. In Firefox, remember that the bridge is the connection method rather than a browser feature, so the same steps apply.
Pros & cons
- Free to use and released under the open source LGPLv3 license.
- Installs quickly with a single winget command.
- Makes browser-based management possible in Firefox, where WebUSB is not available.
- Covers older Trezor devices that communicate over HID.
- Lightweight service that stays out of the way until a browser needs it.
- Not officially supported on Windows 7 and older systems.
- Works only with Trezor hardware wallets, so it is not a multi-brand tool.
- Has no interface of its own; it is a connection service, not a standalone wallet.
- The most recent code update dates to March 2025, so readers who want the newest features should check activity on the project page.
Is Trezor Bridge safe?
Trezor Bridge handles communication with a hardware wallet, so treat it with the same care as any wallet software. Download only from the official website or the GitHub Releases page of the project. Verify the SHA-256 checksum or the digital signature before running the installer, and keep the program updated. Because the source code is public under LGPLv3, independent developers can review how it works.
The most important rule is never to enter your seed phrase on a website or into any computer program. The bridge does not need your seed phrase, and no legitimate support team will ask for it. Confirm transactions only on the device screen. Check the latest version on the official website before installing, since the current release may differ from the one described here.
- Official source only. Download from wallet.trezor.io/#/bridge. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Trezor Bridge is not a full wallet app, which sets it apart from many of the programs in its category. Trezor Suite, for instance, is the main interface for managing a Trezor device, while the bridge handles the connection that web-based pages need. If you want one place to see your accounts and actions, Trezor Suite is the better fit. If you already use a browser workflow, the bridge is the piece that makes it work.
Other hardware wallet programs follow different designs. Ledger Wallet (Ledger Live) serves Ledger devices, BitBoxApp is built for BitBox02, and Keystone works with third-party wallets on a computer. None of these replace the bridge for a Trezor user, because each is tied to its own hardware or workflow.
Specifications
- Price
- Free
- Type
- Open source
- License
- LGPLv3
- Latest version
- 2.0.27
- Last update
- 13 Mar 2025
- Windows support
- Yes (available via winget)
- Official site
- wallet.trezor.io/#/bridge
- Source code
- github.com/trezor/trezord-go
- Install command
- winget install SatoshiLabs.TrezorBridge
Frequently asked questions
Yes, Trezor Bridge is free to download and use. It is released under the LGPLv3 open source license, which means its code is public. You can review the project on GitHub, where the trezord-go source lives. There is no paid tier required to use the service with your Trezor.
You need it if you use Trezor Suite in web mode in a browser, because that setup relies on the bridge to reach your device. The bridge runs in the background and connects the page to the hardware over USB. If you use a different connection method, you may not need it at all.
Yes, it is one of the main reasons Firefox users install it. Firefox does not allow WebUSB, so web pages in that browser cannot reach a Trezor directly. The bridge provides the link between the browser and the device, so browser-based management can still work there.
It can be safe when you install it from official sources and verify the file. Its code is open source, so developers can inspect how it behaves. The program does not need your seed phrase, and you should never provide it to any website or application. Keep the software updated.
Not officially. Windows 7 and older versions are not supported by the project. The program may run on them, but there is no guarantee of proper operation. For dependable results, use a version of Windows that Microsoft still supports.
Trezor Bridge is designed for Trezor hardware wallets. Devices running firmware from 2018 or earlier communicate over HID rather than WebUSB, which affects how they connect. Check your device firmware version before deciding how you will use the bridge with your hardware.
Verdict
Trezor Bridge suits Windows users who own a Trezor and manage it through a browser, especially those using Firefox or older hardware. It is free, open source and small in scope. If you prefer a full desktop application with its own interface, you may find Trezor Suite more practical. For anyone who relies on browser-based tools, the bridge is a simple and sensible connection layer.