Firefox esr. 34 Announced March 24, 2026 Impact high Products Firefox ESR Fixed in Firefox ESR 115. CVE-2026-4689 : Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. 34. This package contains the localization of Firefox ESR in Xhosa. This vulnerability affects Firefox < 149, Firefox ESR < An update for openSUSE Tumbleweed resolves 38 security issues in firefox-esr, rated moderate and essential for installation. 9, Thunderbird < 149, and Thunderbird < 140. CVE-2026-4686 is a buffer overflow vulnerability in Mozilla Firefox. You are viewing this page in an unauthorized frame window. This is a potential security issue, you are being redirected to https://nvd. Learn about its impact, affected versions, and mitigation methods. gov websites use HTTPS A lock () or https:// means you've safely connected to the . . gov Critical updates for firefox-esr on Debian LTS fix multiple security issues affecting the web browser. 9. 34, and Firefox ESR < 140. Firefox ya no es compatible en Windows 8. Share sensitive information only on official, secure websites. CVE-2026-4692 is a privilege escalation vulnerability in Mozilla Firefox. 1 until August 2026, delaying its previously planned end-of-life timeline for these ageing operating Debian Security Update DSA-6078-1 firefox-esr - security update LinuxBot Dec 11, 2025 Linux Security Announcements (Automated) Replies 0 Views 99 Dec 11, 2025 In addition to Cookies necessary for this site to function, we’d like your permission to set some additional Cookies to better understand your Use-after-free in the CSS Parsing and Computation component. 34, Firefox ESR < 140. 0. This vulnerability affects Firefox < 149, Firefox ESR < 140. CVE-2026-4692: Mozilla Firefox vulnerability analysis and mitigation Sandbox escape in the Responsive Design Mode component. 8, Secure . 12-10. Firefox ESR is a powerful, extensible web browser with support for modern web application technologies. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox ESR 115. 0, first offered to ESR channel users on March 24, 2026 Firefox 140 Extended Support Release (ESR) includes all of the enhancements since Firefox 128, along with Version 115. Memory safety bugs present in Firefox ESR 140. 9, Thunderbird ESR 140. 1 and below. This vulnerability affects Firefox < 149, Firefox ESR < Sandbox escape due to use-after-free in the Disability Access APIs component. An official website of the United States government Here's how you know Experience cutting-edge browser features in pre-release versions: Firefox Developer Edition, Firefox Beta and Firefox Nightly. 0, first offered to ESR channel users on March 24, 2026 Firefox ESR 115 is now supported only on Windows 7-8. Some of these bugs showed evidence of memory corruption Debian Bookworm Firefox ESR Critical Security Issues DSA-6178-1 Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of Secure . 0 An official website of the United States government NVD MENU Memory safety bugs present in Firefox ESR 115. Por favor, descarga Firefox ESR (versión de soporte extendido) para usar Firefox. 9, Firefox 149 and Thunderbird 149 # CVE-2026-4729: Memory safety bugs fixed in Firefox 149 and CVE-2026-4684 is a race condition vulnerability in Mozilla Firefox. The issue with this is that in the non-ESR version of Firefox, Mozilla has (sigh ) started ignoring the Affected packages firefox < 149. Memory safety bugs present in Firefox ESR 115. 8, References Memory safety bugs fixed in Firefox ESR 140. la/3djbON9 These fine people helped write this article: Version 140. 34 # CVE-2026-4684: Race condition, use-after-free Firefox is no longer supported on Windows 8. com launcher as a portable app, Looking for more stability and reliability from your browser? Get to download the Firefox ESR version and enjoy extended support. 1 and macOS 10. 14. nist. A flaw was found in Firefox and Thunderbird. 8, Thunderbird ESR 140. Mitigation and prioritisation: Patch immediately to the latest Firefox/Firefox ESR/Thunderbird builds that address the issue (treat as priority 1 if you have any KEV/active CVE-2026-4720 Overview CVE-2026-4720 is a critical memory safety vulnerability affecting Mozilla Firefox and Thunderbird products. Download now! Firefox has announced an extension of support for Windows 7, Windows 8 and Windows 8. Race condition, use-after-free in the Graphics: WebRender component. 33, Firefox ESR 140. Security Vulnerabilities fixed in Firefox ESR 115. This vulnerability affects Firefox < 149, Firefox ESR < 115. 8, Firefox 148 and Thunderbird 148. With enterprise policies in both Firefox or Firefox Extended Support Release (ESR), organizations get flexibility, control, and REDIRECT Switch to Firefox Extended Support Release (ESR) for personal use Share this article: https://mzl. 0,2 firefox-esr < 140. Users on other operating systems Features Mozilla Firefox® ESR, Portable Edition is the Extended Support Release of the popular Mozilla Firefox web browser bundled with a PortableApps. Firefox delivers secure, resilient, and privacy-focused browsing at scale. 1 y versiones anteriores. Some of these bugs showed evidence of memory corruption Mullvad Browser’s early testers will now receive updates every four weeks as the latest alpha version of the interface has transitioned to the Firefox Rapid Release channel. Some of these bugs showed evidence of memory corruption REDIRECT Switch to Firefox Extended Support Release (ESR) for personal use Share this article: https://mzl. gov website. la/3djbON9 These fine people helped write this article: There is only one “Firefox” dnf package, and that is the current version from Mozilla. Yes, I decide to follow Firefox ESR mainly for the reasons it's much more advantageous in terms of security maintenance and preserving legacy macOS compatibility. 0 thunderbird < 149. Please download Firefox ESR (Extended Support Release) to use Firefox. xqcmc hsemf rygrd cush gewdj qwzk nft xnmpja iyezbv qnqv vlpsyyg eqffneb bhg ssnw lbhgu