Re-enable multi-process support disabled by Windows utilities

Revision Information
  • Revision id: 123813
  • Created:
  • Creator: Joni
  • Comment: new article per bug 1272385
  • Reviewed: Yes
  • Reviewed:
  • Reviewed by: heyjoni
  • Is approved? Yes
  • Is current revision? No
  • Ready for localization: No
Revision Source
Revision Content
This article applies to Windows computers only.

Some accessibility tools on Windows might turn off Firefox's multi-process support. Follow these steps to re-enable it:

  1. Type in about:config in your address bar. (Click the I'll be careful, I promise! button to pass the warning screen).
  2. Look for the ensure accessibility.loadedInLastSession preference and change its value to false.
  3. Clear the accessibility.lastLoadDate preference by right-clicking to bring up the context menu, and selecting Reset.
  4. Restart Firefox.