After long search and a lot of try and error, here you can find a imacro script for Firefox that works !

1. Search for the “imacros for firefox” extension on google and install the extension in Firefox
2. Search for the “ImageBlock” extension for Firefox and install it in Firefox
3. Activate them both in Firefox
   
4. Go to your Facebook photos, block the images
   
5. Click on the first photo to open it in Facebook
6. Open the imacro sidebar
   
7. Open the in the managing mode (not PLAY or RECORD) current.iim
   
   
8. Erase the actual script and paste this one:
   VERSION BUILD=9030808 RECORDER=FX
   TAB T=1
   SET !TIMEOUT_STEP 1
   SET !ERRORIGNORE YES
   WAIT SECONDS=3
   TAG POS=1 TYPE=SPAN ATTR=TXT:Optionen
   WAIT SECONDS=3
   TAG POS=1 TYPE=SPAN ATTR=TXT:Dieses<SP>Foto<SP>löschen
   WAIT SECONDS=3
   TAG POS=1 TYPE=BUTTON ATTR=TXT:Löschen
   WAIT SECONDS=5
   TAG POS=1 TYPE=DIV ATTR=CLASS:_2-sx&&TXT:
   WAIT SECONDS=5
   REFRESH
9. Change the red lighted spellings to your language and buttons in the Facebook side (e.g. Options… Delete photo… Delete…) check it out
10. Save the script
11. Start the script in Loop mode after adjusting the number of circles