Suddenly, clicking on a link from pidgin or google talk opens a new Firefox window. I'd like it to keep on opening external links in new tabs, as it used to. I'm using Firefox 3.6.13 on Windows 7, I checked this question, and the settings are the defaults: browser.link.open_newwindow = 3, browser.link.open_newwindow.restriction = 2. What should I do?
EDIT I also had checked (seemed too obvious to mention) that Tools - Options - Tabs - Open new windows as tabs" was checked.