I have a shopping cart script which I am trying to find a specific div in, but instead of downloading all the files and doing a search, are there any other tools, e.g something similar to FireBug I can use online to find which file is being used on a specific page?
Nope. Firefox only sees the output, and has no idea what happened with templates server side. Unless maybe it’s in the comments (like <!-- this-and-that.tpl –> and <!-- /this-and-that.tpl –>), but that’s not customary.