Rated 4 out of 5 stars

Από τον/την retrovertigo στις Μάρτιος 20, 2014 · μόνιμος σύνδεσμος

Exactly what I was looking for!

One update would be great though: an option to change the short code to merge windows - Ctrl + Shift + M - as this is used by the Firefox Developer Tools to switch to "responsive Design Mode"