Firefox 15's Pre-Release Version Features a Flexible Debugger
Firefox's Aurora channel is here, and is currently where you can get Firefox 15. Just keep in mind that the Aurora channel is where early, pre-beta versions of the browser go, so expect bugs that will be ironed out before official release, and don't expect to be able to use all your extensions.
Mozilla has posted a visual tour of most of the important additions to Firefox version 15 here, which provides this information about the debugger:
"When you open the Debugger, all of the page’s scripts are listed in a menu. Using the search box, you can quickly jump to a file by typing part of its filename....
- It’s remotable! You can connect the debugger user interface to a debugger backend running somewhere else.
Meanwhile, you can watch a short video on the new Layout and Responsive Design View features in Firefox 15 here. The official release won't arrive for a few weeks, but should be one to look forward to as Firefox remains in a battle for market share with Google Chrome. According to the latest numbers from Net Marketshare, Chrome has 19 percent of the browser market, while Firefox has 20 percent.