Hi,
I don't really like XnView since it supports tabs... just don't see the benefits. But I am sure it would be handy... just used to 2 views, browser and image.
No critics on Tabs here.
DO have one problem I hope this will be added as a standard option:
When image A, B, C, D and E are opened, and I doubleclick on image C in the browser or Windows Explorer, go to the opened tab with this image INSTEAD of opening a new tab..
Cos now a new tab opens and I've got the same image in 2 tabs

also.. it seems the 1.82.4 is little less stable (could be my pc)? just freezes after opening an image in Explorer, only sometimes.
Anyway still the best imageviewer!