Firefox is one of the few remaining browsers with its own rendering engine, as Opera, Brave, Edge, and others now utilize Google’s Chromium engine. However, Mozilla isn't having much trouble keeping Mozilla competitive with other browsers, as Firefox is about as fast as Chrome and Edge in real-world usage. Firefox 90 arrived last month with new rendering features and the ability to save credit card information, and now Firefox 91 is starting to roll out.

Firefox 91 on the desktop updates the browser's Total Cookie Protection, which confines cookies to the site where they were created, with fixes for various data leaks and other improvements. Mozilla has also flipped the switch on HTTPS by Default, which attempts to load all content over HTTPS unless it fails (then it will try again over insecure HTTP). Google started testing a similar feature for Chrome back in June.

The Android browser now uses a grid view as the default layout for the tabs tray, but the option for list view isn't going anywhere. eBay is also now available as a search engine option, just like the desktop app has offered for a while. Finally, Firefox for Android is matching Chrome's behavior of blocking audio in auto-playing videos by default, instead of blocking video and audio auto-play.

You can download Firefox for desktop platforms from the browser's official website. The Android version is available on the Google Play Store.

Firefox Fast & Private Browser Developer: Mozilla
Price: Free
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