Coming Soon!

For now, here is what I have:

Using Gspace

This article gives instructions on using Gspace. To get a Gmail account, please visit Google.

What you need:

Firefox
Gspace
A Gmail account

To access Gspace, either go to Tools>Gspace, or type in
chrome://gspace/content/gspaceWindow.xul
in your browser.

When you are at the Gspace screen, clcik on "Manage Accounts" at the top-left corner.
A box will pop up:

Fill in your Gmail account. I will be using one I just made for this extension, mp7125@gmail.com.

Click on the "Add" button. Then click on the "Close" button.
On the main screen, click on the "Login" button on the right side of your email address.

Gspace will log you in.
You can now select files on the right half of your screen, click on the "Right" arrow in the middle of your screen. That will transfer your files to Gmail. Beware that to download files, you need to use Gspace.

Modes
In the top bar, there is a button that says "File Transfer Mode".
Click on it to reveal:
File Transfer mode (For transfering files)
Player Mode (For playing audio)
Photo Mode (For viewing photos/pictures)
Gmail Drive Mode (I don't know, but it can be slow, and it is download only)