In previous versions of Firefox I used the cache directory to extract videos, flash files and hidden images, that were not saved in folder and a HTML Document file on desktop. For Example the opening image of a YouTube Video can not be extracted and saved from Firefox but is stored in the cache directory. To find these files without going through them one at a time, I would copy the cache folder on a desktop folder and then use Double Killer to delete the same size files in both the cache and the saved files in the desktop file folder. The files that are left behind in the cache folder are those that did not save to the desktop file and folder. I can then double check to see if I can find the videos, flash or images from the remaining files. I have updated to Firefox 30.0.3. The problem now is that the files in the cache are different in KB size from the saved files on the desktop folder. The dimensions of a saved image are the same but the size of the file differ. Now I can not use Double Killer to delete files and have to go through the whole cache directory one by one to find files that were not saved. Why did the Firefox developers changed the cache directory? Do I need to revert to a previous version of Firefox or is there a way that I can change the cache directory of Firefox 33.0.3 and the size that it stores files. Would also like to know what add-on gives the best quality screenshot with flash. Thanks for this support. Apart from this cache problem I find Firefox easy to use and the best web browser.