in regards to your edits at acid you are invited to the discussion at the article's talk page please discuss before changing the caption as it has been explained numerous times that the caption describes the image the image is for mozilla firefox a not mozilla firefox a if you wish to have the image updated go for it and upload mozilla firefox a the image and caption can then be updated however i ask that you please not continue merely changing the caption as it is incorrect it doesn't matter how many times you change it it will be changed back if you persist the page may be semi protected to prevent further disruptive ip edits thank you