Bookmarks Tab Pinned

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A bookmark manager is automatically displayed in the state of tab fixation.A bookmark manager is displayed on the leftmost in the state of tab fixation at a Chrome start-up.
Nothing is done when there is already a book Mac manager of a tab fixed state.

I think that it is a delightful function to the following directions.
-Since it is hard to use the pulldown display of a bookmark bar, you always want to display a bookmark manager.
-Since a fixed tab is certainly generated at a start-up, the mistake which clicks x of the last tab carelessly and it terminates can be prevented.

Specification
- In consideration of tab movement, a bookmark manager tab display when a new window is created is performed in 3 seconds.