My God This Is So Annoying !!!

such a simple task but its so annoying when it doesnt work
the way you would like

all i want to do is right click on a image online and save is as a JPEG file
now normally there isnt even a question about it, it saves without any
issues, but now when i save it even though it says its a JPEG it saves
it in some next format and i have no option to select in which format to
save the image, could someone please tell me how to make this simple
task simple again ?

i want to save images in JPEG format by right-clicking and saving !!!