https://www.mozilla.org/en-US/firefox/87.0/releasenotes/ Menu Mozilla Download Firefox Firefox Privacy Notice Get a Firefox Account * Firefox Browsers Close Firefox Browsers menu + [log] Firefox for Desktop Get the not-for-profit-backed browser on Windows, Mac or Linux. + [log] Firefox for Android Get the customizable mobile browser for Android smartphones. + [log] Firefox for iOS Get the mobile browser for your iPhone or iPad. + [ico] Privacy Promise Learn how Firefox treats your data with respect. + Firefox Blog Read about new Firefox features and ways to stay safe online. + Release Notes Get the details on the latest Firefox updates. View all Firefox Browsers * Products Close Products menu + [log] Firefox Monitor See if your email has appeared in a company's data breach. + Facebook Container Help prevent Facebook from collecting your data outside their site. + [poc] Pocket Save and discover the best stories from across the web. + Mozilla VPN Get protection beyond your browser, on all your devices. + Product Promise Learn how each Firefox product protects and respects your data. + [ico] Firefox Relay Sign up for new accounts without handing over your email address. + [ico] Firefox Private Network (beta) Protect your browser's connection to the internet. View all Products * Who We Are Close Who We Are menu + Mozilla Manifesto Learn about the values and principles that guide our mission. + Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web. + Get involved Join the fight for a healthy internet. + Leadership Meet the team that's building technology for a better internet. + Careers Work for a mission-driven organization that makes people-first products. + Mozilla Blog Learn about Mozilla and the issues that matter to us. More About Mozilla * Innovation Close Innovation menu + Mozilla Hubs Gather in this interactive, online, multi-dimensional social space. + [log] Firefox Developer Edition Get the Firefox browser built just for developers. + MDN Web Docs Check out the home for web developer resources. + [log] Firefox Reality Explore the web with the Firefox browser for virtual reality. + [icon-commo] Common Voice Donate your voice so the future of the web can hear everyone. + WebAssembly Learn more about the new, low-level, assembly-like language. More Mozilla Innovation Release Notes * Desktop * Desktop Beta & Developer Edition * Desktop Nightly * Android * Android Beta * iOS See what's new in Firefox! Release Notes tell you what's new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release. Download Firefox -- English (US) * Windows 64-bit * Windows 64-bit MSI * Windows ARM64/AArch64 * Windows 32-bit * Windows 32-bit MSI * macOS * Linux 64-bit * Linux 32-bit * Android * iOS Your system may not meet the requirements for Firefox, but you can try one of these versions: Download Firefox -- English (US) * Windows 64-bit * Windows 64-bit MSI * Windows ARM64/AArch64 * Windows 32-bit * Windows 32-bit MSI * macOS * Linux 64-bit * Linux 32-bit * Android * iOS * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Firefox for Android * Firefox for iOS Firefox Privacy Notice 87.0 Firefox Release March 23, 2021 Version 87.0, first offered to Release channel users on March 23, 2021 We'd like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox! # New * You'll encounter less website breakage in Private Browsing and Strict Enhanced Tracking Protection with SmartBlock, which provides stand-in scripts so that websites load properly. * To further protect your privacy, our new default HTTP Referrer policy will trim path and query string information from referrer headers to prevent sites from accidentally leaking sensitive user data. * The "Highlight All" feature on Find in Page now displays tick marks alongside your scrollbar that correspond to the location of matches found on that page. * We're proud to announce full support for macOS built-in screen reader, VoiceOver. * We've added a new locale: Silesian (szl) # Fixed * We've fixed several significant accessibility issues: + Video controls now have visible focus styling and video and audio controls are now keyboard navigable. (Bug 1681007) + HTML is now spoken by screen readers. (Bug 1460378) + Firefox now sets a useful initial focus in Add-ons Manager. ( Bug 580537) + Firefox will now fire a name/description change event when aria-labelledby/describedby content changes. (Bug 493683) * Various security fixes. # Changed * To prevent user data loss when filling out forms, we've disabled the Backspace key as a navigation shortcut for the back navigation button. To re-enable the Backspace keyboard shortcut, you can change the about:config preference browser.backspace_action to 0. You can also use the recommended Alt + Left arrow (Command + Left arrow on Mac) shortcut instead. Firefox keyboard shortcuts * We've removed items from the Library menu that weren't used often or have other access points in the browser: Synced tabs, Recent highlights, and Pocket list. * We've simplified the Help menu by reducing redundant items, such as those that point to Firefox support pages that can also be accessed via the Get Help item. # Enterprise * Various bug fixes and new policies have been implemented in the latest version of Firefox. You can see more details in the Firefox for Enterprise 87 Release Notes. # Developer * Developer Information * We've greatly simplified the Web Developer menu. Go to Application Menu > Web Developer > Web Developer Tools to access Inspector, Web Console, Debugger, Network Style Error, Performance, Storage Inspector, Accessibility, and Application * Developers can now use the Page Inspector to simulate prefers-color-scheme media queries, without having to change the operating system to light or dark mode. * Developers can now use the Page Inspector to toggle the :target pseudo-class for the currently selected element in addition to the pseudo-classes that were previously supported: :hover, :active and :focus, :focus-within, :focus-visible, and :visited. * There is a number of Page Inspector improvements and bug fixes related to inactive CSS rules: + The table-layout property is now marked as inactive for non-table elements. + The scroll-padding properties (shorthand and longhand) are now marked as inactive for non-scrollable elements. + The text-overflow property was previously incorrectly marked as inactive for some overflow values. Get the most recent version Download Firefox -- English (US) * Windows 64-bit * Windows 64-bit MSI * Windows ARM64/AArch64 * Windows 32-bit * Windows 32-bit MSI * macOS * Linux 64-bit * Linux 32-bit * Android * iOS Your system may not meet the requirements for Firefox, but you can try one of these versions: Download Firefox -- English (US) * Windows 64-bit * Windows 64-bit MSI * Windows ARM64/AArch64 * Windows 32-bit * Windows 32-bit MSI * macOS * Linux 64-bit * Linux 32-bit * Android * iOS * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Download Firefox * Firefox for Android * Firefox for iOS Firefox Privacy Notice All Firefox downloads Need help or want to leave feedback? File a bug Leave feedback Get Involved Did you know that most of the content in Firefox Support was written by volunteers? Find out more Other Resources Developer Information Complete list of changes for this release Press Kit Mozilla and Firefox News Firefox Extended Support Release All Firefox for Desktop Releases Learn more about Firefox Company * Mozilla Manifesto * Press Center * Corporate Blog * Careers * Contact * Donate Resources * Privacy Hub * Browser Comparison * Brand Standards Support * Product Help * File a Bug Developers * Developer Edition * Beta * Beta for Android * Nightly * Nightly for Android * Enterprise * Tools Follow @Mozilla * Twitter (@mozilla) * Instagram (@mozilla) Follow @Firefox * Twitter (@firefox) * Instagram (@firefox) * YouTube (@firefoxchannel) Mozilla * Website Privacy Notice * Cookies * Legal * Community Participation Guidelines Visit Mozilla Corporation's not-for-profit parent, the Mozilla Foundation. Portions of this content are (c)1998-2021 by individual mozilla.org contributors. Content available under a Creative Commons license. Close Get the latest Firefox browser. Download Firefox Firefox Privacy Notice Meet our family of products * [log] Browsers [log] Monitor [log] Lockwise [poc] Pocket [con] Mozilla VPN [set_hsts]