When tabbed browsers first appeared, I was dubious. I liked my various windows that I could arrange! Over time, browers improved tab management and tools, and I adapted. I often have multiple windows open, each with a particular task or project, with many tabs in each.
But what do you do when you have a bunch of tabs in one window and want to move them to another window? Safari lets you drag tabs one at a time: hold down on the tab and drag and a tiny window appears that you drag into another open window (either onto a tab or into the tab bar). Or you can release it and it becomes a freestanding window of its own.
IDG
You can add all the tabs in a window to a bookmarks folder.
