Cool Tool: FireFTP
FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox
which provides easy and intuitive access to FTP servers. Via LifeHacker:
After installing it, you'll need to head to Firefox's Customize Toolbar menu and drag the FireFTP icon to a toolbar. From there, just click the icon to launch the client in a new tab. (You'll also see a second tab from the author, who requests charitable donations.) Now click Manage Accounts to add FTP sites. FireFTP employs a simple Explorer-style interface and offers features like directory comparison and syncing, SSL encryption, and file hashing.
There is an excellent support page covering installation, general usage, troubleshooting, some miscellaneous questions and a great walkthrough for beginners available by Prisca Schmarsow.
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