How can I check a series of bookmarked pages without returning to the dropdown menu for each page?

I have so many bookmarks that I use folders and subfolders to organize them. Is there a way I can go to a sequence of pages without going through a long series of dropdowns for each one? I thought maybe there would be some freeware for this where I could input a long list of pages and just click "next" to go from one to another. But I haven't found such a program.