Firefox 108.0 リリース

Mozilla Firefoxは、Mozilla Foundationおよびその傘下のMozilla Corporationによって開発されているフリーかつオープンソースのウェブブラウザである。単にFirefoxと呼称されるほか、fireおよびfoxの和訳から火狐とも呼称される。
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Firefox 108.0

Version 108.0
Released Dec 13, 2022

Noteworthy changes / Bug fixes


  • Import maps, which allow web pages to control the behavior of JavaScript imports, are now enabled by default.
  • Processes used for background tabs now use efficiency mode on Windows 11 to limit resource use.
    Efficiency mode on Windows 11
  • The shift+esc keyboard shortcut now opens the Process Manager, offering a way to quickly identify processes that are using too many resources.
  • Improved frame scheduling when under load; this substantially improves Firefox’s MotionMark scores.
  • Firefox now supports properly color correcting images tagged with ICCv4 profiles.
  • Support for non-English characters when saving and printing PDF forms.
  • The bookmarks toolbar’s default “Only show on New Tab” state works correctly for blank new tabs. As before, you can change the bookmark toolbar’s behavior using the toolbar context menu.
  • Various security fixes.
  • Firefox now supports the WebMIDI API and a new experimental mechanism for controlling access to dangerous capabilities.
Community Contributions