This autohotkey script refreshes the browser window automatically when saving a file

auto_refresh.ahk

; USAGE: 
;  1. Install autohotkey.
;  2. Install the Firefox extension "CSS Reloader".
;  3. Save this script anywhere on your computer.
;  4. Open your website in Firefox.
;  5. In this script, replace "Expresto - Mozilla Firefox" with the title of the Firefox window you want to auto-refresh.
;  6. Run this script, it stays in the backgound.
;  7. Edit your website inside your preferred text editor or IDE.
;  8. Now, save your work, but instead of ctrl+s, use ctrl+alt+s (or altgr+s) and see Firefox refreshing stylesheets automagically in the background.

; NOTES: 
; You can replace {F9} by {F5} for a full page refresh.
; You may have to increase the sleep value from 900 miliseconds, or reduce it for more responsiveness.


^!s::
Send ^s
Ifwinexist, Expresto - Mozilla Firefox
{
Sleep, 900
Controlsend,, {F9}
}