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Browser and device support

Browsers, operating systems and devices that should support FairlySoon, and what to try if it does not work.

Last updated: 12 October 2026

FairlySoon relies on a modern browser running on a modern operating system, ideally on relatively modern hardware. In particular, this combination needs to support a technology called 'WebGPU' in order to display the weather maps and provide the high performance passage routing.

Browsers and devices that should support WebGPU#

Use the latest version of your browser. Based on Can I Use’s WebGPU support table and the WebGPU platform notes, these combinations should provide the support FairlySoon needs:

  • Windows laptops and desktops: Chrome or Edge 113+, or Opera 99+, on Intel or AMD PCs with compatible graphics. Windows on ARM is still limited.
  • Macs: Chrome or Edge 113+, or Opera 99+. Safari 26+ also supports WebGPU when running on macOS Tahoe 26 or later; updating Safari alone on an older macOS release is not enough.
  • iPhones and iPads: Safari on iOS 26 or iPadOS 26 or later.
  • Android phones and tablets: Chrome 121+ on Android 12+ with a supported GPU, including Qualcomm Adreno and ARM Mali. Samsung Internet 24+ also supports WebGPU, though availability depends on the device.
  • Chromebooks: Chrome 113+ on a Chromebook with compatible graphics (Vulkan support).
  • Linux computers: Chrome 144+ with Intel Gen12 or newer graphics, or Chrome 147+ with NVIDIA graphics using Wayland and driver 535.183.01 or newer. Other hardware and driver combinations remain limited.
  • Firefox: WebGPU is available from Firefox 141 on Windows and Firefox 145 on Apple silicon Macs with macOS 26+. Firefox 147 extends this to other supported macOS versions on Apple silicon. Linux, Intel Macs and Android are not yet enabled in standard releases.

This is a guide to expected support, not a guarantee for every device. We have encountered problems with Firefox in FairlySoon; if it does not work, try another browser listed above. Graphics drivers, hardware acceleration and available memory can also affect whether the app runs well.

If it does not work#

  1. Update your browser, operating system and graphics drivers. Enable hardware acceleration where the browser offers it, then restart the browser.
  2. Open FairlySoon directly in the browser rather than inside an email or social app. Close other demanding tabs and try again.
  3. Try another listed browser or device. If the problem persists, contact us with your device model, OS and browser versions, and any error message.

For missing forecasts or unsuccessful passage calculations, see Troubleshooting.