How to turn off double space between lines.I use Mozila Firefox 54 verion
When i write text in any text box,after pressing enter it putt double spacing between lines.I can't turn of this options and only way i can fix this,i must to copy text to another text editor and delete space between lines.
Opaite Mbohovái (3)
What's your computer system and Firefox version?
Is this with all web sites, some, a few?
Could be that you have CR/LF (\r\n; %0d%0a) as line ending and that both these characters act a a line break.
Maybe use a text editor that can set the line ending to LF (\n; %0a) only.
Do you mean even the simple boring text boxes on this forum, or fancier rich text editors on email sites, for example? If it happens even on this forum, I would suspect some incompatibility between your keyboard software and Firefox.
One workaround may be to use Shift+Enter, which traditionally creates a new line without creating a new paragraph.