Security News > 2020 > September > Firefox 81 Release Kills High-Severity Code-Execution Bugs
Mozilla patched high-severity vulnerabilities with the release of Firefox 81 and Firefox ESR 78.3, including several that could be exploited to run arbitrary code.
Firefox ESR is a Firefox version that's based on an official release for desktop, for use by organizations who need extended support for mass deployments.
The release of Firefox 81 also fixed a third and final high-severity flaw in its implementation of Web Graphics Library, a JavaScript API for rendering interactive 2D and 3D graphics within any compatible web browser.
The remainder of flaws fixed in Firefox 81 are moderate in severity.
Firefox browser bugs have been in the spotlight lately; recently a vulnerability in Firefox for Android was discovered that paves the way for an attackers to launch websites on a victim's phone, with no user interaction.