I very recently installed Ubuntu 20.04 on my laptop and have been having this issue where I can't open most of the images I have saved. I get an error that says
Unrecognized Image File Format
(but they are literally just jpgs and PNGs).
I've tested the images by moving them to my thumb drive and then my Windows PC and they open up fine. I can also select Open with Firefox and that works but it's inconvenient. I've attempted to rename them and have the same issue. I've tried updating, upgrading, rebooting, and opening the images from the terminal and still I can't open some dumb wallpaper I saved from reddit.
How do I go about fixing this?
Update:
so I was able to figure this out, as it turns out these were webp images, which is odd because they all saved under .jpg or even .png without me intervening. So I've installed something that can view them properly, but there's still an issue. If I were to link an image in an email or on a website or something I won't be able to actually see what it is I'm linking unless I were to open up in a separate window first. So I'm unsure what to do about that.
source: OP's comment