沒什麽大不了的
browser之間大家都是相互瞎抄一氣,"tab browsing"是抄opera的,"safe browsing/phishing site protection"是抄firefox的,"private browsing/incognito mode"是抄safari的, "address bar search"不知道是誰抄誰的,gnome的epiphany和opera都有這個功能,還有extension,wdges, ...etc。反正都沒有patented,抄了也不犯法,還有多少別的browser直接用netscape/mozilla/firefox的gecko layer engine.