Uncomfortable editing in bookmarks
If I edit the title of a bookmark and press ENTER, the new text is not saved. I have to edit the title and click on the symbol for editing to save the text - that is not really logical. Usually ENTER means save and ESC means cancel the editing. Furthermore - it is more likely to edit the title than the URL, so the focus should start in title field and not in the URL field if the edit mode is toggled on.
Both good points. I suspect that they're are already logged as bugs, at least the first one.
You could submit a bug report (improvement issues should be logged in the wizard too).