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I love Chrome's incognito mode when developing. Let's say you're logged into your site checking things. Then you want to login as the admin without logging out

• dspillett 16y ago
  That sort of thing is very handy when testing workflows between users on a system that uses cookies for session state, though is actually handled better by IE of all things. Using "new session" from the file menu in IE8 (or just running a new instance of iexplore.exe (instead of just creating a new window) under IE6/7 if you have the "reuse windows" option turned off) you can create several independent sessions. There are not many cases when you need a lot of concurrent sessions, but there are a few I hit occasionally where four is useful (for instance a workflow where a file quality reviewer, adviser, adviser's supervisor, and a compliance officer all interact with the process at some stage). You can do the same in Firefox but in a slightly more long-winded way: you need to setup independent profiles which is a little more faf initially. Each profile gets its own firefox.exe process and addin-ins, which can be handy: I keep a clean profile (no addins at all) for some testing (for instance to rule out an oddity being due to interaction with a particular plugin) without having to disable all the add-ins on my main profile.
• klbarry 16y ago
  Very useful for SEO as well, you can check rankings without logging out of your gmail preferences.