So you have come to a website with many galleries that display images that are named sequentially (e.g. img001.jpg, img002.jpg and so on)? You would like to auto-navigate or automatically download all of the images without having to repeat the same step a hundred times? Flipper, a Firefox extension, could help you automate the task.
Update: it is no longer available. Scroll down for alternatives.
It is not that easy to use on first glance but it becomes clear after using the test gallery which was setup by the author of the extension. Flipper is working the following way: You click on the first image of the first gallery and hit CTRL + END afterwards which opens the configuration window of Flipper.
You do need to manually add some values to the following fields. Let us use the same example that the author of the gallery extension used.
After you setup everything click ok. This should load the first image of the gallery again. You can then navigate through images and galleries using a combination of CTRL and the cursor keys. CTRL + Left Arrow loads the next image, CTRL + Right Arrow the previous. CTRL + UP Arrow will load the first image of the next gallery and CTRL + Down Arrow the first image of the previous gallery. Images that can't be found will be skipped.
The extension (still) has some limitations. If folder and / or file names differ from each other it will not work. Some variables like letters that define gallery ranges do not work properly on all occasions which will hopefully be fixed in coming releases.
Update: As I mentioned before, Flipper is no longer available. Here is a list of alternatives:
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