Importing data from the Chromium Snap Package:

• Ubuntu users using Firefox Snap can now import browser data from Chromium if it is installed as a Snap package.

Privacy settings for websites:

• A new feature called Website Privacy Settings has been added to the Privacy & Security settings section, allowing users to tell websites not to sell or share their data or send a Do Not Track request.

Improved privacy and security:

• Users can now import TLS trust anchors (certificates) from the operating system's root storage in the Privacy & Security > Certificates section.
• Added a context menu item "Copy links without site tracking" to copy links without tracking information.

Improvements to the Picture in Picture (PiP) mode:

• The Picture-in-Picture feature now has an angle adjustment feature that is activated by holding down the Linux Shift key while moving the PiP window.
• This release adds a new "devtools" feature that allows users to simulate a disconnected connection to websites.

Cookie banner blocker and URL tracking protection (Germany only):

• Added a cookie banner blocker for users in Germany that automatically rejects cookies and rejects annoying banners on supported websites.
• URL tracking protection removes unspecified URL request parameters that are used to track users.

Privacy improvements:

• Firefox 120 continues to improve private windows and ETP-Strict privacy configuration to enhance Canvas APIs with fingerprint protection.

Tools for website developers:

• In this release, the new version of Firefox activates WebAssembly GC by default to support languages such as Dart or Kotlin.
• Early pre-connect prompts are enabled.
• Added a new user activation API for JavaScript to check user activity on a web page.
• Support for lh and rlh units for correct parsing and calculation of lengths.