Minimal Bookmarks Tree

Minimal Bookmarks Tree is a Google Chrome extension that displays a tree of bookmarks under a toolbar button.

After installing this addon, you can easily search your bookmarks from the address-bar by typing the keyword 'bm'. To open a bookmark in the current tab, just click it. If you want to open a bookmark in a new tab, middle click it. And if you want to open a bookmark in a new tab in the background (i.e., stay on the current tab), Ctrl click it.