Firefox 15 debugger to go into beta next week

Among the enhancements queued up by Mozilla in the next weeks for the new Firefox beta will be a new debugger for web applications. Firefox’s JavaScript engine has been providing debugger support to extensions, most notably Firebug, for some years, but with Firefox 15, the entire debugging interface of Spidermonkey, the JavaScript engine, has been redesigned. This has eliminated much of the performance penalty that comes with running JavaScript code with a live debugger and it allows the debugger to be run remotely.