When comparing fman vs Vifm, the Slant community recommends Vifm for most people. In the question“What are the best file managers for UNIX-like systems?” Vifm is ranked 12th while fman is ranked 13th. The most important reason people chose Vifm is:
Since it runs in a terminal, it may live within ssh sessions, tmux/screen sessions, etc.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Works on all operating systems
Windows, Mac, and Linux are supported.
Pro Simple to use
Pro Makes finding commands *by name* easy
Pro Slick
Pro Allows you to stay in the terminal
Since it runs in a terminal, it may live within ssh sessions, tmux/screen sessions, etc.
Pro Nice Themes for a terminal app
Vifm has a lot of good themes that you can easily grab from the main site and use with the :colorscheme command.
Pro Configurable
You can easily configure almost all aspects of vifm by just editing the dotfile which is pretty easy is you are comfortable with configuring apps.
Pro Great integration with vim
The vifm.vim plugin allows you to use vifm as a powerful filepicker for vim.
Pro Default key mappings will be comfortable to vim users
Vifm uses vim-esque key mappings. Makes for extremely efficient and---perhaps more importantly---intuitive interactions. The key mappings can be changed.
Pro Dual pane
The dual pane nature of vifm makes copy paste and moving files from one folder to another super easy.
Cons
Con No (text) file viewer
Con No explicit bookmark support for directories
It though remembers the visited directories and allows to search in this list in most-recently used order and by name.
Con Mainly for key-board-orientated users
The interface is most naturally navigated by arrows and keystrokes. The target market is software developers.
Con Has no menu bar
Hence it is not well suited for visually orientated users which find or remember commands by using a mouse and a menu. Even the fman's hero Sublime Text uses a menu bar.
Con Requires email address to download
Doesn't say what it will do with this data. It is in contrast to the new laws in Europe where only necessary information is allowed to be collected. A download should not require an email address.
Con Still quite buggy
So, for example, sorting only is remembered if triggered by command and not be clicking the table column header using the mouse.
Con Settings can't be found by the GUI
You need to know which files to edit.
Con Default dark theme
No choice between dull-dark or fresh-light.
Con No portable bundle available
On Windows only a net-installer is available.
Con Useless for non-vi users
Even to quit one has to use ":q".
Con Very high learning curve for newbies
Con Can only be used in terminal
Vifm lacks a standalone GUI option.