Technology

Mozilla on Tuesday delivered Firefox 61 for Windows, macOS and Linux, claiming that the browser's page-painting speed has been improved and that switching tabs is faster than before.

The developer's engineers also patched 18 vulnerabilities in Firefox, a third of them marked "Critical," the highest threat ranking in a four-step system.

Firefox 61, which can be downloaded from here, updates in the background, so most users need only relaunch the browser to get the latest version. To manually update, 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." The resulting page shows that the browser is either up to date or details the updating process.