In the command line, try fooling around with the linelength and pagelength variables.
The following is from the list of FIBS commands which can be found at
http://www.fibs.com/CommandReference/The linelength and pagelength variables
Some commands produce more output than will fit on your screen. You can tell FIBS about the size of your window or screen by setting the two variables 'linelength' and 'pagelength'. The pagelength should be set to the number of lines in your window, the linelength should be set to the number of columns (or to a value slightly less than that). If you have a 80x24 screen you might issue the following commands:
> set pagelength 24
> set linelength 79
You should try 78 and 80 for the linelength too and see what you like best. You can then use the save command to make those settings permanent. Using the values from this example FIBS would wrap lines so they contain at most 79 characters and if the output of single command exceeds 23 lines it will print [Return] in the bottom line of the screen. Just hit your return key to see the next page of output, or type any other command to continue without seeing the rest of the output.