FileFast for Firefox and Gmail
The same focused transfer flow in Firefox.
Use the Firefox sidebar for files, folders and Gmail without opening a separate upload page.
Designed for this platform
FileFast where it saves a step
01
Firefox-native sidebar
Keep FileFast visible beside Gmail or any other tab while the transfer is prepared.
02
Same upload workflow
Select files or a folder, configure delivery and follow one combined progress state.
03
Signed before public release
Mozilla validates and signs the package before it becomes a one-click installation.
While it runs
One transfer, one progress state
Whatever you selected reports into a single transfer, so there is one thing to watch and one result to share.
FileFast for Firefox and Gmail
Beside the message, not instead of it
The sidebar opens next to the draft you were already writing. The page you were reading stays where it is, and the finished link drops into the message when you ask for it.
Installation and release
Start in a few clear steps
- 01
Package validation
Version 0.1.0 passed Mozilla validation with zero errors and zero warnings.
- 02
Source review and signing
The package and reproducible source archive are awaiting Mozilla review and signing.
- 03
AMO or file.fast
After signing, we can list it on Firefox Add-ons or serve the signed installer directly from this website.
FAQ
Before you install
Can Firefox install it directly from file.fast?
Yes, after Mozilla signs the XPI. A signed Firefox extension can be installed from our website without the Chrome-style Developer mode flow.
Is there a developer registration fee?
Mozilla requires an account and policy compliance, but the normal add-on submission flow does not use Chrome’s five-dollar registration step.
Does it read Gmail messages?
No. It only inserts the completed FileFast link into a visible draft after an explicit action.
Can it be listed publicly on Firefox Add-ons?
Yes. We can submit the prepared package for a public AMO listing and automatic updates.
Also available