User manual:Setting up the Chrome extension on Linux
The Chrome extension is a convenient way of using Trezor without installing proprietary software on your computer. However, on Linux, users need to perform additional configuration of their system.
After you install the Chrome extension in Trezor Wallet on Linux, you will be asked to install additional package (DEB or RPM), which configures Udev rules of your system. Those additional Udev rules are necessary for communication between the device and Chrome browser.