Hello, I have been a Firefox user recently after Firefox is updated to version 50.0. I love Firefox's speed and add-ons at Windows and iOS, but at Mac(which is my main computer and concern) it doesn’t work good. The problem is Korean input source. Korean letter is consist of 1 or 2 consonant and a vowel. When I type a letter(a consonant and a vowel) and type another letter continuously, the 2nd consonant is omitted. For example, if I typed “테스트”(I hope you can see this Korean which means “test”), at Firefox it typed as “테ㅡㅡ”. It really embassasing me. I think Firefox consider that 1st letter is typing when I type 2nd consonant so the curser sticks to the 1st letter and omit it. Maybe an error. Sometimes (1 of 10 times) Korean typed properly(and I don’t know why they can). But still at this situation the cursor sticks to the last letter so if I type Korean to search at Firefox, I have to pace bar or enter to end the typing. For example if I typed “테스트” at search bar or address bar and hit enter, it only ended my typing and doing nothing so I have to hit enter again so they search something. I googled and somebody solved this problem by Firefox refreshing but it didn’t work for me(I’m not sure their version is 50.0 or more recently.) I’m afraid that I describe this problem understadably, but I also hope you understand this problem and solve it. Safari and Chrome have no issue for the kind of Korean input. I use MacPro(Late 2013), macOS Sierra 10.12.2, Firefox 50.1.0. Thank you.