Here is a pretty stable Chrome extension that allows you to download files directly to Dropbox. It’s a great plugin, but it needs an option to change the download folder location. Conveniently download straight into your Dropbox account. https://chrome.google.com/webstore/detail/download-to-dropbox/mklccdhnpppcmbpbkaanmamjfmmefbnp
How To Use It
It is quite simple to use. If you wish to save to Dropbox and select Upload to Dropbox. The file will be automatically uploaded to your Dropbox account.