yes but believe it or not, the new firefox UI/UX has been in the works for so long and chrome's development so quick that it seems like firefox was inspired by chrome when in fact that didn't happen
I'm a Firefox developer and I don't think this is true. As far as I know, most of the key elements of the Firefox 29 theme redesign emerged after the last major UI redesign (Firefox 4) was released in 2011.