The new Firefox DevTools are powerful, flexible, and best of all, hackable. This includes a best-in-class JavaScript debugger, which can target multiple browsers and is built in React and Ember.
Lqem aneggaru n ifecka n tneflit n Firefoxd uzmir, d afallaẓ, d areḍlim ɣef tmerskurt, ad terreḍ akken tebɣiḍ. Lqem-agi yegber tamseɣtayt  JavaScript n imusnawen iteddun ɣef ddeqs n iminigen, tin yettwasneflin s React d Ember.