Gwenview is sometimes unable to open images saved from the internet with FireFox (typically 1 in 25 photos have this problem). Preview thumbnails are not generated for such pictures, and attempting to open them in Gwenview shows the error "Loading meta information failed". To see them I need to right-click and open with Okular.

Problem is, I heard this was fixed in KDE 4.9.5. But I upgraded from 4.8.5 and it still takes place. Anyone know if I can fix Gwenview somehow, or when the problem will be solved if it's an issue on its end?

Hi,

This problem often happens when the extension of an image does not match its format, for example a jpeg file named foo.png. You can check the real format of your image by running "file <path/to/your/image>" on the terminal. If the format does not match the extension, renaming the file should fix the issue.

This bug has been fixed in 4.10.0, but is still present in 4.9.5.

Ah... for some reason I suspected that at some point. I remember being uncertain about the format of a file once, and when I renamed it from jpg to png (or the other way around) it started showing the thumbnail. No idea why some people save images with the wrong format though... I get this issue rather frequently with images I save from galleries, and can't rename them all each time. I'll wait for KDE / Gwenview 4.10 in that case.