What's new Firefox 120?

The key updates and improvements introduced in Firefox 120 are:

1. A new Website Privacy Preference option called "Tell websites not to sell or share my data" utilizes Global Privacy Control (GPC), which helps users opt-out of targeted advertising and limits the sale or sharing of their personal data.
2. Importation of data from Chromium installed through Snap for Ubuntu Linux users.
3. Simulation of offline browser tabs using a new developer tool feature.
4. Imports TLS trust anchors (certificates) from the OS root store, enabled by default on Windows, MacOS, and Android; this can be managed under Preferences > Privacy & Security > Certificates.
5. Added keyboard shortcuts for editing and deleting credentials on about:logins.
6. Introduced "Copy Link Without Site Tracking," which removes trackers from URLs when they are copied.
7. Enabled Cookie Banner Blocker by default in Private Windows for German users.
8. Activated URL Tracking Protection by default.
9. Strengthened privacy protections in Private Windows and enhanced fingerprinting protection with ETP-Strict privacy configuration.
10. Improvements to Picture-in-Picture mode and addition of a corner-snapping feature for Linux and Windows versions.

Additionally, Firefox 120.0.1 fixed bugs related to persistent startup slowdowns and high CPU usage on certain sites like Google Maps, and announced discontinued support for Windows 8.1 and lower, along with macOS 10.14 and earlier, encouraging users to switch to Firefox ESR (Extended Support Release).