Task-based address bar and tabs scaling

Various embodiments provide a Web browser that includes an address bar and functionality that distributes one or more tabs along a line that is common to both the tabs and address bar. In at least some embodiments, one or more of the address bar or the tabs are dynamically resized based on a task context associated with a user's interaction with the Web browser. For example, when the task context is associated with a tab interaction, the address bar and/or tabs can be dynamically resized to enhance the user's tab experience. Likewise, when the task context is associated with an address bar interaction, the address bar and/or tabs can be dynamically resized to enhance a user's address bar experience.