How to use Cookies in firefox

some we get premium cookies on Internet but it is so confusing when we are replacing cookies... we have search for different items in different websites.....
procedure:-

1) Install the latest version of Firefox here.

2) Download the Cookie Editor for Firefox here (for Firefox 3.x.x) or here (for Firefox 4).

3) Open Firefox and login to your hotfile free account.

4) Go to Tools > Cookie Editor.

5) Search for "hotfile" and press "Filter/Refresh".

6) Double click to "hotfile.com" site with "auth" value.

7) Paste a valid premium cookie to "Content" bar and click the save button.

8) Refresh the page and Enjoy.

To add other file hosts cookie, Change the steps 5 & 6 like below

Megaupload: Search for "megaupload" with "user" value.

Hotfile: Search for "hotfile" with "auth" value.

Rapidshare: Search for "rapidshare" with "enc" value.

Netload: Search for " Netload" with "cookie user" value.

depositfiles: Search for "depositfiles." with "auto login" value.

Alldebrid: Search for " Alldebrid " with " uid " value.

Oron: Search for "oron" with "xfss" value.

Filesonic: Search for "filesonic" with "PHPSESSID" value.

Fileserve: Search for "fileserve" with "PHPSESSID" value.

wupload: Search for "wupload" with "PHPSESSID" value.