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Mozilla Automation TeamHenrik Skupin1 min readintermediate

Firefox WebDriver Newsletter 155

Read on fxdx.dev

Summary

Firefox 155 WebDriver newsletter lists recent bug fixes and cleanup work, including fixing a DevTools conflict, removing a thin helper, correcting double‑click behavior, and simplifying subscription handling.

  • Updated `moz:debugging` to avoid nested event‑loop conflicts when using WebDriver BiDi alongside DevTools.
  • Removed the `executeSoon` helper, simplifying thread dispatch code.
  • Fixed Actions API so `dblclick` with Ctrl works on non‑macOS platforms.
  • Added cleanup of BiDi subscriptions when a browsing context is destroyed.

These changes reduce interference between WebDriver BiDi and DevTools, clean up legacy code, and tighten the Actions API, leading to more reliable automated testing across browsers.

4/10
pythontestingrustjavascriptwebdriver

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