When I was first experimenting with GIT I was administering the server using the wbm-virtualmin-git plugin for Virtualmin. As a result, I was using the HTTP protocol to access the git repository and preform user authentication.
There are several Firefox plugins which allow the user to manipulate their browser cookies. However, most of these plugins force the user to manipulate cookies individually. This can become tedious if the user is simply “importing” cookies from, say, a wireshark dump.
The CookieInjector userscript simplifies this process, by allowing the user to copy-paste the cookie portion of the dump and have the cookies from the dump automatically created on the currently viewed web page.