With the release of Firefox 66, we are pleased to welcome the 39 developers who contributed their first code change to Firefox in this release, 35 of whom were brand new volunteers! Please join us in thanking each of these diligent and enthusiastic individuals, and take a look at their contributions:

• 3DIndian: 1022039
• adam.kolodko: 1508990
• bitnotri: 1461737
• chengy12: 1518220
• danielleleb12: 1517756
• dhyey35: 1517505
• mathijs: 1514880, 1515354, 1519645
• matthewacha: 1517753
• nickcowles9575: 1517529
• quasicomputational: 1422235
• sharath.savasere: 1516221
• shivambalikondwar: 1468749
• thomasmo: 1474034, 1508225, 1522989
• tobias: 1513917
• sdaswani: 1517607
• Agboola Mukhtar : 1517442
• Akash Srivastava: 1516536, 1519920
• Akshay Kumar: 1508115, 1522145
• Alex Kong: 1508988
• Artem Polivanchuk: 1521715, 1521716, 1522424
• Garvit Khatri: 1519791
• Irvin Ives Lau: 1495189, 1509634
• Jeremy Lain'e: 1517731
• John Lin: 1516089
• Jonas Allmann: 1498238
• Julia McGeoghan: 1508991
• June Wilde: 1415743, 1508782
• Kaio Augusto de Camargo: 1513496
• Kristian Klausen: 1385706
• Muchtar: 1508984
• Ola Gasidlo: 1500353, 1518559, 1520768
• Patricia Lawless: 1517726, 1522722
• Ryan Scherich: 1489095, 1512749
• TomS: 1508724
• Varun: 1519476, 1519480
• Vincent Wong: 1508985
• Volodymyr Klymenko: 1508825
• William G Hatch: 1513405
• mordax: 1508983
• xftroxgpx: 1520418

https://blog.mozilla.org/community/2019/03/11/firefox-66-new-contributors/