Images downloaded with session cookies have lower resolution than anonymous downloads

Author: yuyoiuyoiuCreated Aug 22, 2026Updated Aug 22, 2026
Labelsbug

Describe the bug I noticed that downloading post using -- -postcode while authenticated (using --login) yields lower resolution images compared to downloading the same public post anonymously without cookies.

To Reproduce Steps to reproduce the behavior:

  1. instaloader --load-cookies firefox -- -DcV4IoAkj_-
  2. instaloader -- -DcV4IoAkj_-
  3. download from profile: instaloader --load-cookies firefox _1127oo

Result

  1. instaloader --load-cookies firefox -- -DcV4IoAkj_- image: 1290x1720, 179KB

  2. instaloader -- -DcV4IoAkj_- image: 3072x4096, 1.54MB

  3. instaloader --load-cookies firefox _1127oo image: 3072x4096, 1.54MB

Instaloader version 4.15.2