S30-ext — Privacy Policy
Last updated August 14, 2026 (renamed from Sceneflow to S30/S30-ext).
Short version
The S30-ext collects nothing and sends nothing anywhere. It runs entirely inside your own browser, on your own Google Flow tab, and talks to no server of ours or anyone else's.
What the extension does
S30-ext is an unofficial, third-party browser tool — it is not affiliated with, endorsed by, or produced by Google. It reads the prompt files you select from your own computer and types them into Google Flow's own web interface on your behalf, one prompt at a time, so you don't have to do it by hand for every scene in a batch.
Data we collect
None. The extension does not collect, log, or transmit your prompts, your Flow account, your browsing activity, or any other personal data to S30 or to any third party. Nothing about your usage is sent to an analytics service, an ad network, or any external server at all.
What stays on your device
- Local storage — the extension remembers, on your device only, whether you've already seen its one-time setup notice. That's the only thing it stores.
- Prompt files — the .txt files you select are read locally by your browser to type their contents into the page. They are never uploaded anywhere by the extension.
- Images fetched from Flow itself — when attaching a character image already present on your own Flow project page, the extension reads that image directly from the page you are already viewing, purely to re-attach it elsewhere in the same page. It never leaves your browser.
Why the extension asks for the permissions it does
- activeTab — to act on the Google Flow tab you have open, only when you click the extension.
- debugger — to type prompts and click buttons on the Flow page the same way a real keystroke or click would, since Flow's own interface doesn't expose a simpler way to do this reliably in bulk.
- sidePanel — to show the extension's own controls in Chrome's side panel instead of a popup.
- downloads — to save generated video prompt files back to your computer.
- storage — to remember the one-time setup notice mentioned above.
Changes to this policy
If this ever changes — for example, if a future version adds a feature that does send data somewhere — this page will be updated first, and the "Last updated" date above will change.