Cybersecurity articles tagged #Firefox on RuntimeRebel.https://runtimerebel.comhttps://runtimerebel.com/blog/chrome-firefox-thunderbird-updates-patch-dozens-of-high-severity-flawshttps://runtimerebel.com/blog/chrome-firefox-thunderbird-updates-patch-dozens-of-high-severity-flawsGoogle and Mozilla release urgent updates for Chrome 151, Firefox 154, and Thunderbird 154, addressing critical and high-severity vulnerabilities including RCE.Wed, 19 Aug 2026 08:26:41 GMTChromeFirefoxBuffer OverflowUse After FreePrivilege Escalationhttps://runtimerebel.com/blog/mozilla-rotates-firefox-gpg-key-after-accidental-github-exposurehttps://runtimerebel.com/blog/mozilla-rotates-firefox-gpg-key-after-accidental-github-exposureMozilla issued a new GPG key for Firefox and Thunderbird artifacts after an accidental exposure in a private GitHub repository, mitigating supply chain risk.Tue, 11 Aug 2026 08:45:41 GMTMozillaFirefoxSupply Chain AttackThunderbirdGPG Keyhttps://runtimerebel.com/blog/cve-2026-10702-firefox-jit-flaw-enables-tor-browser-rce-patch-nowhttps://runtimerebel.com/blog/cve-2026-10702-firefox-jit-flaw-enables-tor-browser-rce-patch-nowA critical JIT compiler vulnerability in Firefox, tracked as CVE-2026-10702, allows remote code execution on Tor Browser via a single malicious webpage visit.Wed, 29 Jul 2026 14:13:03 GMTCVE-2026-10702FirefoxTor BrowserRCEJIT CompilerNebula Securityhttps://runtimerebel.com/blog/analyzing-firefox-captive-portal-detection-in-network-logshttps://runtimerebel.com/blog/analyzing-firefox-captive-portal-detection-in-network-logsUnderstand how Firefox's captive portal detection generates network traffic, its benign nature, and how to differentiate it from malicious activity.Tue, 21 Jul 2026 13:57:46 GMTCaptive PortalFirefoxNetwork Traffic AnalysisHoneypotsSecurity OperationsLog Analysishttps://runtimerebel.com/blog/firefox-cve-2026-15718-and-cve-2026-15719-patch-guidancehttps://runtimerebel.com/blog/firefox-cve-2026-15718-and-cve-2026-15719-patch-guidanceMozilla issues critical updates for Firefox to fix CVE-2026-15718 and CVE-2026-15719. Public exploit code for these flaws necessitates immediate remediation.Wed, 15 Jul 2026 17:19:33 GMTFirefoxMozillaCVE-2026-15718CVE-2026-15719Webassemblyhttps://runtimerebel.com/blog/firefox-150-patch-271-zero-days-found-via-claude-mythos-update-nowhttps://runtimerebel.com/blog/firefox-150-patch-271-zero-days-found-via-claude-mythos-update-nowFirefox 150 addresses 271 vulnerabilities discovered by Anthropic’s Claude Mythos AI model, highlighting a shift in automated vulnerability discovery.Wed, 29 Apr 2026 12:42:45 GMTFirefoxAnthropicClaude MythosMozillaAI SecurityBrowser Securityhttps://runtimerebel.com/blog/firefox-cve-2026-6770-tor-browser-fingerprinting-patch-guidancehttps://runtimerebel.com/blog/firefox-cve-2026-6770-tor-browser-fingerprinting-patch-guidanceFirefox 150 and Tor Browser 15.0.10 address CVE-2026-6770, a fingerprinting vulnerability that risks de-anonymizing users on privacy-focused networks.Mon, 27 Apr 2026 08:58:22 GMTCVE-2026-6770FirefoxTor BrowserFingerprintingPrivacyhttps://runtimerebel.com/blog/firefox-148-security-update-anthropic-ai-uncovers-22-vulnerabilitieshttps://runtimerebel.com/blog/firefox-148-security-update-anthropic-ai-uncovers-22-vulnerabilitiesAnthropic's Claude Opus 4.6 AI model identified 22 security vulnerabilities in Firefox, including 14 high-severity flaws addressed in the version 148 release.Sat, 07 Mar 2026 20:09:17 GMTFirefoxAnthropicClaude Opus 4 6MozillaBrowser SecurityAI Security