Opera 12.12

Release notes

Release date: 2012-12-18

Opera 12.12 is a recommended upgrade offering security and stability enhancements.

Fixes and Stability Enhancements since Opera 12.11

General and User Interface

  • Several general fixes and stability improvements
  • New option ‘Delete settings and data for all extensions’ option (off by default) in the Delete Private Data dialog
  • Corrected an issue where using the 'Delete Private Data' dialog could delete extension and settings data
  • Redesigned the 'Delete Private Data' dialog to be more usable with small screens
  • Fixed an issue where quitting Opera while in fullscreen mode could cripple the interface on the next start-up

Security

  • Fixed an issue where malformed GIF images could allow execution of arbitrary code; see our advisory
  • Fixed an issue where repeated attempts to access a target site could trigger address field spoofing, as reported by Masato Kinugawa; see our advisory
  • UNIX-only
    • Fixed an issue where private data could be disclosed to other computer users, or be modified by them, as reported by Jann Horn; see our advisory

Documentation

Opera Help

Need help? Hit F1 anytime while using Opera to access our online help files, or go here.