gistfile1.sh

#!/bin/bash

# Check if Internet Explorer is running, if so refresh
ps -xc|grep -sq "Internet Explorer" && osascript -e 'tell app "Internet Explorer"' -e 'activate' -e 'OpenURL "JavaScript:window.location.reload();" toWindow -1' -e 'end tell'

# Check if OmniWeb is running, if so refresh
ps -xc|grep -sq OmniWeb && osascript -e 'tell app "OmniWeb"' -e 'activate' -e 'reload first browser' -e 'end tell'

# Check if Firefox is running, if so refresh
ps -xc|grep -sqi firefox && osascript <<'APPLESCRIPT'
   tell app "Firefox" to activate
   tell app "System Events"
      if UI elements enabled then
         keystroke "r" using command down
         -- Fails if System Preferences > Universal access > "Enable access for assistive devices" is not on 
      else
         tell app "Firefox" to Get URL "JavaScript:window.location.reload();" inside window 1
         -- Fails if Firefox is set to open URLs from external apps in new tabs.
      end if
   end tell
APPLESCRIPT

# Check if Safari is running, if so refresh
ps -xc|grep -sq Safari && osascript -e 'tell app "Safari"' -e 'activate' -e 'do JavaScript "window.location.reload();" in first document' -e 'end tell'

# Check if Camino is running, if so refresh 
ps -xc|grep -sq Camino && osascript -e 'tell app "Camino"' -e 'activate' -e 'tell app "System Events" to keystroke "r" using {command down}' -e 'end tell'