Why Opera is using Firefox's Cookies

Question

Hello,

I have two open sessions on different browsers (Firefox, Opera). Both of them run on different user accounts. When I navigate through the administration page, the cookies are ok. But when I try to upload some images, the uploading php script receives the same cookies as in Firefox.

This doesn't happen if I use Internet Explorer instead of Opera.

Answer 1

If you're using Flash - which it seems like you do - this is because all browsers share Flash cookies since they're stored in the same location on the computer. This is not a browser problem, but rather a Flash problem (or feature).

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Edit: See Local Shared Object on Wikipedia for a bit more information about Flash cookies.