Opera 21: More Tools > Import Bookmarks is greyed out
Just downloaded Opera 21 after I got frustrated with Opera 20 not displaying the full URL.
In Opera 21: More Tools > Import Bookmarks is greyed out.
I was able to fix this by copying the bookmarks file from Opera 20 (stable) over to Opera 21 (next).
I guess there was a command-line command I should have tried first.
Anyway, here's the thread: forums.opera.com/discussion/1832244/why-is-bookmark-importer-disabled-in-opera-next-v21