Well Microsoft didn’t remove that feature but based on case studies, not so many developers tended to use it, so they removed it from the out-of-the-box menu configuration. So in order to get access to them, you’ll have to press the “Add or Remove Buttons” option of a toolbar, select “Customize…” and then drag and drop the “Navigate Backward” and “Navigate Forward” buttons that are located under the “View” category.
And since I got some time to blog about toolbars configuration on visual studio, I also tend to add the “Solution Configurations” located under the “Build” category. It’s really helpful especially during the after sale service period when you debug the changes and then build a release for the client. I also enable the “Build” toolbar (right click in the toolbar area and select the Build option) which is helpful in order to cancel a build if F5 or build solution was accidentally pressed.