Firefox ignores zero-width space - ​ aka ​
For languages that don't put spaces between words there's a Unicode character zero-width space - aka - that a browser is supposed to use as a cue to break a line. Firefox ignores it.
For languages that don't put spaces between words there's a Unicode character zero-width space - ​ aka ​ - that a browser is supposed to use as a cue to break a line. Firefox ignores it.