Do an Add-On search from a Mozilla-based browser and find other cookie managers`Now that we can see our cookies, and even change them, keep an eye out for interesting
values, including:`user=password=uid=isloggedin=`Stuff like that is all too often the site simply maintaining critical objects like Usernames, Passwords, Log on status on your device - making it oh so easy to present spoofed access tokens that should be authenticated, but just aren't because it's easier
for the site developer to just store them in a cookie and be done with it. After all, cookies are site specific. Right? Ever wonder why a site looks so different on your Smart Phone or Tablet than it does on your Desktop PC? The site is probably using the User-Agent:
string associated with your browser. The next addition to our browser will allow us to change that string and make our browser look like a Smartphone (either an Android, iPhone, even a Blackberry). Or, perhaps we have a Linux desktop but would like to see how a site presents itself to a Windoze box.`Quickly and easily switch between popular user-agent strings.Get it here: User-Agent Switcher
` We've only just begun when it comes to manipulating the data our browser sends a web site. With our next tool, we'll be able to see and edit GET or POST requests before they leave our browser and get processed by the server we're investigating.`TamperData----------Use tamperdata to view and modify HTTP/HTTPS headers and post parameters.Trace and time HTTP response/requests.Security test web applications by modifying POST parameters.FYI: The current version of Google Web Accelerator is incompatible with the tampering function of TamperData. Your browser will crash.Get it here: TamperData Plug-in for Firefox
` Of course, I saved the best for last. This next tool is actually a toolbar that can be added to Firefox the same way your bookmarks can be displayed as a toolbar. Why is this toolbar so handy? With the exception of viewing or changing the User-Agent this Developer's tool can do just about everything else we've covered above. Like Firebug, it can isolate and view every element of a rendered page. However, it doesn't have the facility to edit or change any page element the way Firebug can. It does have a menu entry to make all those obfuscated Password boxes visible. Enough preamble`Web-Developer & Toolbar-----------------------This is a huge Toolkit of tools for viewing, sometimes manipulating, the data rendered.Get it here: Web Developer Toolbar
`and a button to hide/reveal the toolbar`Get Toolbar button: Web Developer Toolbar Button
Thanks and I hope this is useful to you.