Firefox 75 has changed the initial value of the
image-orientation CSS property from
from-image, which uses Exif data stored in JPEG images for rotation. Chrome 81 is shipping the property on March 17 with defaulting to
from-image, so any compatibility issue could be noticed before Firefox 75 goes out of beta on April 7. If you find certain pictures on your site not rotating properly, you need to modify these image files with a photo editor.
Safari is also shipping the property in the near future.
Update: The novel coronavirus (COVID-19) outbreak is forcing people to spend more time online at home. Due to concerns around making the change with Firefox 75 during such an uncertain time, it has been postponed to a future release. The new behaviour remains enabled on the Nightly channel. We’ll update this note when the situation has changed.