On Windows when I do alt+tab I can switch between windows. If I have 5 firefox windows open then using alt+tab will switch between them.
On my MacBook, cmd+tab switches between applications, not windows, so it will switch between firefox and xcode, but not between two different firefox windows.
I am sure there is SOME way to use keyboard shortcuts to switch between active windows. What am I missing?

`on same key as´and is obtained by pressingShift+´:-( – Victor May 19 at 11:46Cmd+`, and "Focus to ?toolbar?(Seitenleiste des Fensters)" =>Cmd+Shift+`. Since both´and`are on same key (see my previous comment), rotating between application windows went only in one direction. All I had to to was change the 1st mapping toCmd+´and 2nd mapping to something else, e.g.Cmd+ß, and suddenly window switching works in both directions:Cmd+´andCmd+Shift+´. That simple... BTW, the default suggested by OSX isCmd+<for Window switching. – Victor May 19 at 12:11