One month ago Blogger completely moved to new Interface and remove old blogger interface. This new Interface is better than old one in many ways , image upload is improved with many option , and many new SEO features like search description , custom permalink etc were added. Any way new Interface is better but there is a minor problem , while editing Template code , page goes blank after a few seconds. So editing xml template became a problem.We found an alternate way to edit XML codes/ Template codes.
In this way you can edit your codes as well as customize your Template. JS switcher , Mozilla extension will help
1. First of all , Install JS switch extension
2. Restart Mozilla Firefox
3. Menu --> Option or View -> option ( In Windows XP mode )
Select or Enable Add bar and Navigation tool bar.
4. Then you can see JS button on the bottom bar
Watch this video