Firefox 90.0

Firefox

Firefox is a fast, full-featured Web browser. It offers great security, privacy, and protection against viruses, spyware, malware, and it can also easily block pop-up windows. The key features that have made Firefox so popular are the simple and effective UI, browser speed and strong security capabilities.

Firefox has complete features for browsing the Internet. It is very reliable and flexible due to its implemented security features, along with customization options. Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.

Beginning in 89, you’ll notice a number of changes, including:

Simplified browser chrome and toolbar: Less frequently used items removed to focus on the most important navigation items.
Clear, streamlined menus: Re-organized and prioritized menu content according to usage. Updated labels and removed iconography.
Updated prompts: Infobars, panels, and modals have a cleaner design and clearer language.
Inspired tab design: Floating tabs neatly contain information and surface cues when you need them, like visual indicators for audio controls. The rounded design of the active tab supports focus and signals the ability to easily move the tab as needed.
Fewer interruptions: Reduced number of alerts and messages, so you can browse with fewer distractions.
Cohesive, calmer visuals: Lighter iconography, a refined color palette, and more consistent styling throughout.

What's new in Firefox 90.0:

On Windows, updates can now be applied in the background while Firefox is not running.
Firefox for Windows now offers a new page about:third-party to help identify compatibility issues caused by third-party applications
Exceptions to HTTPS-Only mode can be managed in about:preferences#privacy
Print to PDF now produces working hyperlinks
Version 2 of Firefox’s SmartBlock feature further improves private browsing. Third-party Facebook scripts are blocked to prevent you from being tracked, but are now automatically loaded “just in time” if you decide to “Log in with Facebook” on any website.

Fixed:

Various security fixes

Changed:

The "Open Image in New Tab" context menu item now opens images and media in a background tab by default. Learn more
Most users without hardware accelerated WebRender will now be using software WebRender.
Improved software WebRender performance
FTP support has been removed

Enterprise:

Various bug fixes and new policies have been implemented in the latest version of Firefox. See more details in the Firefox for Enterprise 90 Release Notes.

Developer Information

Support for Private Fields (TC39 proposal, stage 3) is available in DevTools. The support includes: object inspection, autocompletion, expression evaluation, variable tooltips, and pretty printing (bug)
The Network panel shows a preview of HTTP requests for fonts in the Response tab (bug)

Web Platform

Support for Fetch Metadata Request Headers, which allows web applications to better protect themselves and their users against various cross-origin threats.
Added the ability to use client authentication certificates stored in hardware tokens or in Operating System storage.