Once I heard weird story. A man was playing some web MMRPG game. Most of these games prohibit multiplayer and you know why 😃 Game site checks this by setting cookie to browser and when you logout and login with another char it tracks this.
What was the solution ? Most simple one, he installed all versions of browser he found on the Internet(IE,FF,Chrome,Safari, etc). That was weird, but it worked.
I want to tell about much simplier way of doing thia based on Mozilla Firefox profiles.
By default when you start Mozilla Firefox for the fist time it created "Default" profile. What is profile ? Profile is directory where Mozilla Firefox stores all your settings, cookies, bookmarks, history, add-ons, etc....
Every time you start browser it loads its "Default" profile by default. Even if you start Mozilla Firefox again it attaches to the same "Default" profile.
And here is how to do a trick. It is possible to create multiple profiles and launch multiple Mozilla Firefox instances, which will be absolutely independent from each other.
To do it, create new shortcut on desktop with program path: "C:\Program Files\Mozilla Firefox\firefox.exe" -no-remote -ProfileManager Name this shortcut "Firefox Profile" and launch.
In new window choose "Create Profile" follow simple wizard, it is done only once. After profile is created choose it from list and Start Firefox.
That is very simple.
You can install different themes in different profiles to distinguish one from another.
To choose profile automaticly from shortcut use: "C:\Program Files\Mozilla Firefox\firefox.exe" -no-remote -P <profilename>