What’s in the latest Firefox update? 89 stymies shifty JavaScript tracker

Mozilla on Tuesday upgraded Firefox to version 89, debuting a new look that the company said is “designed to win you back” to the open-source browser.

The organization’s engineers also patched nine vulnerabilities, two of those labeled “High,” Firefox’s second-most-serious label. Three of the nine were found only in the Android edition of the browser, while another was only in the Windows edition’s code. None were marked “Critical,” the most dire flaw category.

Firefox 89 can be downloaded for Windows, macOS, and Linux from Mozilla’s site. Because Firefox updates in the background, most users can relaunch the browser to install the latest version. To manually update on Windows, pull up the menu under the three horizontal bars at the upper right, then click the help icon (the question mark within a circle). Choose “About Firefox.” (On macOS, “About Firefox” can be found under the “Firefox” menu.) The resulting page or pop-up shows that the browser is already up to date or displays the upgrade process.

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