Is there a browser that doesn't now limit the minimum width of a users window? Firefox was a lifeline when doing fast mobile mocks as I could have a window set to 320px width and work happily away. Safari and Chrome also have a minimum browser width (around 450px).I'd write to Firefox but they stopped listening to developers ages ago.This is a tad annoying and means I have to do responsive testing in-device now which isn't practical when you're fleshing things out... Anyone got any bright ideas on how to control this? Fuck using Opera - but it appears to be my only choice.