Ever had a problem with large files and accessing them from multiple places, well Gspace is the answer:

Here’s a link to the website.

This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system. The interface will make your Gmail account look like a FTP host.
After the installation, you’ll get an option called “Gspace” in your “Tools” menu, which opens the GSpace window.

It’s great for storing/sharing files with your friends. Also very good to backup photos and music files (as you can view/listen to them from Gspace).

If you have any problems with the extension, please look at the FAQ page (http://getgspace.com/faq.html). If your question is not listed or the solution doesn’t apply to your specific question, please email the current developer (tnarik).

I’ve used this little Firefox plug in for about a year now with great success. Give ‘er a go.

Usage:* Do not upload/download many files in a single day. You may get your
account blocked for 24 houres. It seems this happens if more thatn 1GB of data
is transferred in a single day.* The best thing is to upload files and folders
that are NOT critical. Anyway, since file is available as an attachment on an
e-mail, they will always be available through the Gmail interface, and they
should be as safe as your e-mails.* Creating a new user account is highly
recommended because that won’t affect your regular account.