YouTube™ Flash® Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player. All YouTube videos will play in Flash player automatically which have more high resolution ( HD ) options than HTML5 video player. You can also choose HTLM5 video player as default one from add-on settings. MultiProcess Firefox Electrolysis is supported. YouTube™ Flash® Vide
![YouTube Flash Video Player – 🦊 Firefox (ja) 向け拡張機能を入手](https://cdn-ak-scissors.b.st-hatena.com/image/square/2bb3754f812ead56b9c4c01a4cac9f1454fbbcbc/height=288;version=1;width=512/https%3A%2F%2Faddons.mozilla.org%2Fuser-media%2Fpreviews%2Ffull%2F144%2F144974.png%3Fmodified%3D1622132182)