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Extensions 
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Transfer Dropbox to Google Drive
Directly transfer files from Dropbox to Google Drive and vice versa. No download and re-upload.
Photo Transfer App
Wirelessly Send & Receive Photos & Videos between iPad, iPhone, iPod touch, Android & Computer
WifiTransfer - Instant wireless file transfer
Wirelessly transfer files between your computer and mobile phone over local network with a single tap.
Transfer OneDrive to Google drive
Transfer files from OneDrive to Google Drive, or Google Drive to OneDrive without downloading and re-uploading.
Transfer Google Drive to Onedrive
Transfer files from Google Drive to Onedrive and vice versa. No download and re-upload.
Transfer Ownership
Transfer ownership of a Google Drive Folder, including all sub-folders and contents
Cloud Transfer, Save web file to Cloud
Save the Drive file, any web file directly to your Dropbox, Google Drive, Box, OneDrive.. without downloading them to the computer.
Transfer One Google drive to Another
Transfer files from one Google Drive account to another, or to Dropbox, OneDrive, Box and other cloud drives, vice versa.
BigFile Transfer(Free)- Sateraito Office
Extension of Sateraito Office Bigfile Transfer. Add a button to open Bigfile Transfer from Google Web Mail.