OpenInWindow
This extension allows you to open links in an existing window.
A new context menu option is added when the mouse is on a link. This option lists all the other windows, and the link will be opened in the selected one.
Localizations: ca-AD (Sogame), de-DE (TobiasBauer), en-US (Sogame), es-ES (Sogame), fi-FI (MiK546), fr-FR (efdur), hu-HU (Cashman), it-IT (fabrixx), ja-JP (drry), ko-KR (wtspout), mk-MK (renegade06), nl-NL (jerone), pl-PL (vatzec), pt-BR (Alberto Eidh), pt-PT (promatik), ru-RU (PiVV), sk-SK (Holco), sr-RS (DakSrbija), sv-SE (Lakrits), tr-TR (muhengi), uk-UA (Sappa), zh-CN (fiag).
Works with: 
Firefox 2.0 - 9.* 
Flock 1.0 - 2.0
