No, on mobile Firefox that shows an empty 'loading' page and not the image.

It's not just Firefox which is broken, with Chrome it's impossible to zoom into an image as it redirects the i.imgur.com/xxx.ext links to the HTML wrapped page with a low-fidelity thumbnail and no way of extracting the original.

Interestingly when I open that link in my current window I get redirected to the imgur UI, however if I open in an incognito tab it loads the image directly.

When I click this I am redirected to https://i.imgur.com/XjeS3dG and see imgur shit around the image.

Broken on Windows 10 Mobile Edge too—blank page when preferring desktop site, low resolution thumbnail when preferring mobile.

(ha, it's not because of obsolescence!)

It works for me on Firefox Android, but loads the imgur UI, so probably a redirect.

Sidenote, if I want to upload an image to it I need to display the website as desktop otherwise it says I need the app.

Broken on Safari mobile as well.