One thing that annoys me while surfing the internet is, that some pages want to open a new window but I want only one firefox window with tabs instead. Now I found a method that seems to work.
In the firefox location bar type about:config to change the advanced settings. There you have to change two preferences:
- Change browser.link.open_newwindow to 3
- Change browser.link.open_newwindow.restriction to 0