This should be called "Image Download Canceller" because all it does when I click on it is bring up a notice "user cancelled downloads".

Would be great thing but doesn't work for me at all. After I press the button I see saved file in destination folder but the file is corrupted and its size is always only 24B. File name is correct.

The problem is photos are with URL like http://www.domain.com/picture.jpg?token=123 and seems like extension doesn't use the token parameter so then the result is not the JPEG image but error message "Invalid token" what script returns.

I click, nothing happens, or a message meaning no image downloaded.
I can see that I am not the only one disappointed.
There are certainly incompatibilities with some other add-on. I use video-download helper and addblock. I can't imagine desactivating the last one everytime I want to use TabImage saver.
Besides, it would have been more elegant to have a tool to browse the download folder on the parameter page. And even better, to have an option to decide on the fly where to download.