Mozilla Firefox 58.0.2

Fixed

• Avoid a signature validation issue during update on macOS
• Blocklisted graphics drivers related to off main thread painting crashes
• Tab crash during printing
• Fix clicking links and scrolling emails on Microsoft Hotmail and Outlook (OWA) webmail

Fixed

• Security fix
• When using certain non-default security policies on Windows (for example with Windows Defender Exploit Protection or Webroot security products), Firefox 58.0 would fail to load pages (bug 1433065).

New

• Performance improvements, including:
  • Rendering graphics for Windows users by using Off-Main-Thread Painting (OMTP)
  • Loading pages faster by changing how Firefox caches and retrieves JavaScript
• Improvements to Firefox Screenshots:
  • Copy and paste screenshots directly to your clipboard
  • Firefox Screenshots now works in Private Browsing mode
• Added support for credit card autofill
• Added Nepali (ne-NP) locale
• In case you missed it—57 Release privacy and performance feature:
  Users can enable Tracking Protection at all times. Learn how to turn Tracking Protection on.

Fixed

• Fonts installed in non-standard directories will no longer appear blank for Linux users
• Various security fixes

Changed

• User profiles created in Firefox 58 (and in future releases) are not supported in previous versions of Firefox. Users who downgrade to a previous version should create a new profile for that version. Learn about alternatives to downgrading on our support site.
• Added a warning to alert users and site owners of planned security changes to sites affected by the gradual distrust plan for the Symantec certificate authority

Developer

• Implemented the PerformanceNavigationTiming API
• Added PerformanceResourceTiming.workerStart so sites can measure service worker startup time