I'd love to suggest three simple additions to bookmarking to discuss, which would help mobile users quiet a lot. It's really easy to hit thay bookmark button when going for the dropdown menu. I can't tell you how many times I've accidentally bookmarked my own lions.

First option would be adding a confirmation message to bookmarking, so you are able to hit "no" if you accidentally hit it.

Second would be to add an "undo" button to the successful bookmark alert, giving you the ability to remove the bookmark without annoying confirmation popups.

Third and last option would be to move the dropdown menu to the left corner of the page, instead of directly above the bookmark.