Segue

Right-click a link and send it to another browser window, or Alt-click to send it to a window you choose once.

Segue moves links and tabs between browser windows without dragging. Right-click a link and two submenus list every open window: "Send link to window" opens the link there using your defaults, "Send link to window and switch to it" overrides them for that one click. Windows are listed by the name you gave them, or by the title of their active tab. Alt-click a link to send it straight to the window you chose once, no menu. Alt+Shift-click inverts the defaults for that click. The toolbar button names the current window and makes it the Alt-click target. The name can be mirrored into the window title, so the window can be found by name from outside the browser too. Keyboard: Alt+Shift+Left / Alt+Shift+Right move the current tab to the previous / next window. Options: select the new tab in its window, bring the target window to the front, show window ids and sizes in the menu, show the address next to the window name, catch links opened from other programs so they land in the target window, and keep such links in a window that already has their site open. Segue runs entirely inside the browser. It stores your settings and window names in the browser's own extension storage and sends nothing anywhere.