问题
This is a very annoying limitation for editing some config files, such as mozilla prefs.js. It usually contains lines longer than that.
回答1:
This is a well know "security option", it is configurable:
Go to:
Settings / configure editor / open and save
set line length limit [ 1024 ]
and change 1024
回答2:
If you are against VIM and EMACS (give them a try), there's gnome's alternative Gedit, then theres also the lightweight IDE Geany, and Mousepad, and there are the full fledged IDEs like Ajunta, NetBeans, QTCreator, etc.
来源：https://stackoverflow.com/questions/13496654/kate-text-editor-cannot-handle-lines-longer-than-1024