Firefox performance with screen readers and other accessibility tools is no longer severely degraded if Mozilla Thunderbird is installed or updated after Firefox.

Support for images containing ICC v4 profiles is enabled on macOS.

Mac users can now access the macOS share options from the Firefox File menu.

Full-range color levels are now supported for video playback on many systems.

More secure connections: Firefox can now automatically upgrade to HTTPS using HTTPS RR as Alt-Svc headers.

It came with following new features, changes, fixes and improvements: Mozilla Firefox 92.0 version was released on September 07, 2021.

Firefox now does catch-up paints for almost all user interactions, enabling a 10-20% improvement in response time to most user interactions.

Firefox now automatically enables High Contrast Mode when “Increase Contrast” is checked on MacOS.

The address bar now provides Switch to Tab results also in Private Browsing windows.

HTTPS-First Policy: Firefox Private Browsing windows now attempt to make all connections to websites secure, and fall back to insecure connections only when websites do not support it.

( How-to Restore Old Classic Print Dialog UI) The simplify page when printing feature is back! When printing, under More settings -> Format select the Simplified option when available to get a clutter-free page.Firefox now supports logging into Microsoft, work, and school accounts using Windows single sign-on.

Building on Total Cookie Protection, a more comprehensive logic added for clearing cookies that prevents hidden data leaks and makes it easy for users to understand which websites are storing local information.

Mozilla Firefox 91.0 version was released on August 10, 2021.

Various bug fixes and new policies have been implemented.

Improved software WebRender performance.

Most users without hardware accelerated WebRender will now be using software WebRender.

The “ Open Image in New Tab” context menu item now opens images and media in a background tab by default.

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.

Version 2 of Firefox’s SmartBlock feature further improves private browsing.

Print to PDF now produces working hyperlinks.

Exceptions to HTTPS-Only mode can be managed in about:preferences#privacy page.

Firefox for Windows now offers a new page about:third-party to help identify compatibility issues caused by third-party applications.

On Windows, updates can now be applied in the background while Firefox is not running.

New Firefox versions come with Proton design UI with floating tabs ( How-to Disable Guide).

Mozilla Firefox 90.0 version was released on July 13, 2021.

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