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HarmonyOS professional certification level introduction

Engineer (HCIA): proficient development experience, solid theoretical foundation, senior engineer (HCIP): advanced development, master the ability to develop complex scenarios, expert (HCIE): master full-scenario solutions, planning, design and system tuning ability

Firefox 91 introduces enhanced cookie clearing

It allows you to completely clear the browser history of any website. Today’s new version of Firefox Strict Mode allows you to easily delete all cookies and super cookies stored on your computer by the website or any tracker embedded in it