Apr 22, 2012 Mozilla Firefox 12.0 Change Log. NEW - Windows: Firefox is now easier to update with one less prompt (User Account Control). OldVersion.com provides free software. Older Versions Mozilla Firefox for PC Windows 86.0 Released: 18th Apr 2021 (a few seconds ago) Mozilla Firefox for PC Windows 85.0.1 Released: 18th Apr 2021 (a few seconds ago). The About Firefox window will appear. The version number is listed underneath the Firefox name. Here is an example of what the About Firefox window will look like: Opening the About Firefox window will, by default, start an update check. If an updated version of Firefox is available, it will be automatically downloaded.

1. Firefox Version History

Get the browser that protects what’s important

No shady privacy policies or back doors for advertisers. Just a lightning fast browser that doesn’t sell you out.

Latest Firefox features

• Picture-in-Picture

  Pop a video out of the browser window so you can stream and multitask.

• Expanded Dark Mode

  Take it easy on your eyes every time you go online.

• An extra layer of protection

  DNS over HTTPS (DoH) helps keep internet service providers from selling your data.

Do what you do online.
Firefox Browser isn’t watching.

How Firefox compares to other browsers

Get all the speed and tools with none of the invasions of privacy. Firefox Browser collects so little data about you, we don’t even require your email address to download. That’s because unlike other browsers, we have no financial stake in following you around the web.

We block the ad trackers. You explore the internet faster.

Ads are distracting and make web pages load slower while their trackers watch every move you make online. The Firefox Browser blocks most trackers automatically, so there’s no need to dig into your security settings.

Firefox is for everyone

Available in over 90 languages, and compatible with Windows, Mac and Linux machines, Firefox works no matter what you’re using or where you are. Make sure your operating system is up to date for the best experience.

Put Firefox on all your devices

Take your privacy with you everywhere. Firefox Browsers for iOS and Android have the same strong privacy settings to block trackers from following you around the web, no matter where you are.

Do it all with Firefox

Search smarter, faster

• Search from address bar
• Search engine options
• Smart search suggestions
• Bookmark, history and open tab in results

Boost your productivity

• Works with Google products
• Built-in screenshot tool
• Bookmarks manager
• Autosuggest URLs
• Sync across devices
• Reader mode
• Spell check
• Pinned Tabs

Stream, share and play

• Block Autoplay of video & audio
• Picture-in-Picture
• Curated content on new tab
• Share links

Protect your privacy

• Third Party Cookie Blocking
• Cryptominer Blocking
• Private Browsing mode
• Individual protections report

Secure your personal info

• Breached website alerts
• Built-in password manager
• Clear history
• Form autofill
• Automatic updates

Customize your browser

• Themes
• Dark mode
• Library of extensions
• Adjust search bar settings
• Change new tab layout

Make Firefox your own

• Extensions for every interest

  From security to news to gaming, there’s an extension for everyone. Add as many as you want until your browser is just right.

• Change up your look

  Go from light mode to dark mode depending on your mood or preference, or liven things up with a custom theme (rainbow unicorn, perhaps).

• Tweak your settings

  There’s no need to settle. Change up the new tab page, search bar, bookmarks and more to explore the internet the way you want.

Backed by the non-profit that puts people first

Challenging the status quo since 1998

Firefox was created by Mozilla as a faster, more private alternative to browsers like Internet Explorer, and now Chrome. Today, our mission-driven company and volunteer community continue to put your privacy above all else.

Your privacy comes first

As the internet grows and changes, Firefox continues to focus on your right to privacy — we call it the Personal Data Promise: Take less. Keep it safe. No secrets. Your data, your web activity, your life online is protected with Firefox.

Keep all your favorite browser features — and discover new ones.

Works with Google products

All your favorite Google tools (like Gmail and Docs) work seamlessly in the Firefox Browser.

Facebook Container

Download this browser extension to stop Facebook (and Instagram) from tracking you around the web.

Sync your devices

Firefox is available on all your devices; take your tabs, history and bookmarks with you. All you need is a Firefox account.

Screenshots

Grab a high-resolution image of anything online with our screenshot tool built right in the browser

Enhanced Tracking Protection (ETP)

Firefox automatically blocks many third party trackers from collecting and selling your web activity.

Picture-in-Picture

From watching a web tutorial to keeping an eye on your favorite team, your video follows you while you multitask.

Firefox Browser

Get Firefox Browser for Android

Get Firefox Browser for iOS

Download the Firefox mobile browser for automatic protection on all your devices.

Learn about the Firefox desktop browser below

You’ve already got the browser. Now get even more from Firefox.

Watch for hackers with Firefox Monitor, protect passwords with Firefox Lockwise, and more.

Firefox Version History