With Google webMail Filer for Thunderbird migrate, upload, and sync any Thunderbird messages to any Google email account, with full folder hierarchy replication. Features: Portable, no setup required. Total program size below 615 KB. Runs only on Windows (xp or later), both 32/64 bit editions. Scans for and detects Thunderbird mail folders. Batch-process Thunderbird mail files. Handles large Thunderbird mail files. Full support for unicode labels. Support for Gmail nested labels. Accounts for duplicates on your web mailbox; uploads only what is needed. Checks for Google mail quota above %85 and disables message upload, yet still performs required labeling, if any. Optional IMAP verbose logging. Can Cancel/Pause/Resume jobs when needed. For instance, when it is eating your bandwidth.