User description

🔗 Related Issues

#15801

💥 What does this PR do?

This PR fixes two issues that were preventing the Rust test suite to fully pass on Windows on ARM. While running the tests locally on an arm64 machine, I ran into these errors:

    {
      \"level\": \"ERROR\",
      \"timestamp\": 1752338536,
      \"message\": \"Unsuccessful response (404 Not Found) for URL https://ftp.mozilla.org/pub/firefox/releases/128.12.0esr/win-aarch64/en-US/Firefox%20Setup%20128.12.0esr.exe\"
    }

and

thread 'electron_version_test::case_1' panicked at /rustc/6b00bc3880198600130e1cf62b8f8a93494488cc\library\core\src\ops\function.rs:250:5:
Unexpected failure.
code=65
stderr=```""```
command=`"C:\\repos\\selenium\\rust\\target\\debug\\selenium-manager.exe" "--browser" "electron" "--driver-version" "36.2.1"`
code=65
stdout="[2025-07-12T16:48:12.883Z ERROR] Unsuccessful response (404 Not Found) for URL https://github.com/electron/electron/releases/download/v36.2.1/chromedriver-v36.2.1-win32-arm64-x64.zip\n"
stderr=""

It turned out that the arch names for Windows arm64 were incorrect in the Rust code. Confirmed that these are valid URLs:

https://ftp.mozilla.org/pub/firefox/releases/128.12.0esr/win64-aarch64/en-US/Firefox%20Setup%20128.12.0esr.exe
https://github.com/electron/electron/releases/download/v36.2.1/chromedriver-v36.2.1-win32-arm64.zip

I want to emphasize that Windows ARM64 can run x64 binaries under emulation. So even though e.g. Chrome doesn't have a native Chromedriver yet, Windows ARM64 can run the x64 version under emulation.

This means that the following browsers/drivers will work on Windows ARM64:

I can confirm that the Rust test suite is passing locally on my Windows arm64 machine.

🔧 Implementation Notes

💡 Additional Considerations

• After merging this PR, additional work has to be done to actually release the Windows arm64 binary for Selenium Manager, and include it in the main Selenium packages somehow.
• The docs at https://www.selenium.dev/documentation/selenium_manager/#alternative-architectures will need to be updated if the team is open to merging this PR. I'm happy to open a separate PR for that if desired.

🔄 Types of changes

• Bug fix (backwards compatible)
• New feature (non-breaking change which adds functionality and tests!)

PR Type

Bug fix

Description

• Fix Windows ARM64 platform labels in Selenium Manager

• Correct Firefox ARM64 URL path from win-aarch64 to win64-aarch64

• Fix Electron ARM64 platform label from win32-arm64-x64 to win32-arm64

• Add Windows ARM64 CI testing support

Changes diagram

flowchart LR
  A["Windows ARM64 Detection"] --> B["Firefox Platform Label"]
  A --> C["Electron Platform Label"]
  B --> D["win64-aarch64 URL"]
  C --> E["win32-arm64 URL"]
  F["CI Configuration"] --> G["Windows ARM64 Testing"]

Changes walkthrough 📝

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