UPDATED on 25.9.2020

It looks like DownThemAll developers have been busy to get it running with FireFox (Mozilla) again. However, the Metalink format used here on ipernity is not supported! This is why one still have to either 1) use other methods, 2) use SeaMonkey and an older version of DownThemAll, as instructed below, or 3) wait until one fine day we get the whole ipernity reprogrammed.

If the following old versions of Seamonkey and DownThemAll compo is not an option for you, then see if for example uGet instructed on ipernity FAQ 6.2 works for you.
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If you wish, try to use SeaMonkey 2.49.4 or earlier to be sure it works with older version of DownThemAll:

www.seamonkey-project.org/releases

Then install DownThemAll 3.0.7 available on developers web site:

www.downthemall.org/main/install-it/downthemall-3-0-7

  1. Once, the DownThemAll is installed:
  2. go to your albums section > Open an album > Click on Tool > Download entire album.
  3. click on "Retrieve the download file".
  4. on opening window choose "dTa! Oneclick" and click "Start". If the option is not available, choose "DownThemAll" and click "Start".
  5. On next window choose the destination folder on your computer, and then click "Start".
  6. After the download, check through results in case some files got corrupted.

Remember, you still have to have a paid ipernity account in order to gain access for options to download images and albums at ipernity via Metalink.

Some of the image files may get corrupted (not downloaded completely). It is strongly recommended to check through the downloaded images. If images are not complete or missing, then try again.

Using SeaMonkey as an everyday browser can be risky, and even restricted depending on your computer's security settings. You may have to separately allow installing it. However, the recommended sources should be well respected, known and safe enough. It is strongly advisable to use SeaMonkey only for this purpose. Using Seamonkey and especially it's older versions for daily browsing can endanger your computer.

Moreover, on SeaMonkey you may wish to go to about:config (on URL field) and set app.update.auto to false in order to avoid possible browser updates, which may conflict with the recommended older version of DownThemAll.

This combination only works on laptops and desktop computers, and most likely not on any tablets or mobile phones.