PrivateBookmark автор Woocash

This add-on register listener on webRequests (only for URLs marked in bookmarks as private). Original request is blocked and instead URL is open in a new private window (or in already opened if one exists).

Private bookmarks are those containing keyword defined in preferences page (default is "private"). Keyword must be included in the title field of a bookmark. This is a bit inconvenient but current WebExtensions API does not support any other bookmark field. Once API is updated I will add support also for marking private bookmarks using TAGs.

You can trace progress of API development in here

Happy private browsing!