js event breakpoint

http://reverseengineering.stacke ... inify-on-javascript

如上文所講,chrome, opera 的developer tool 都有js event breakpoint
即係可以係debugger 到set 一個例如mouse over js event, 當mouse 移到web上面任何一個DOM elements 就會trigger 呢個event 就會跳到有關的js


我想問,firefox 內置debugger (不是firebug)有冇咁嘅debug 功能? 好似唔多見有呢個功能