Firefly automatically downloads generated videos before Play/Download, causing excessive bandwidth usage

Forum|Forum|20 hours ago
September 27, 2026
3 replies
38 views

Firefly automatically downloads generated video media before I press Play or Download.
In a controlled test with a single Kling 2.5 Turbo, 5-second video generation, I cleared Chrome DevTools Network before starting the generation and did not press Download.
By the time the generated video appeared, Chrome DevTools showed approximately 104 MB transferred.
The final MP4 itself has:
Content-Type: video/mp4
Content-Length: 20,284,327 bytes (~20.3 MB)
This means roughly 104 MB of network data was transferred for a result whose final video file is only about 20.3 MB, before I manually downloaded anything.
Firefly also fetches the generated MP4 automatically and creates a local blob: URL for playback, instead of waiting for the user to press Play or Download.
Please add a Data Saver / Disable Media Preloading option, so generated videos remain as a lightweight thumbnail/poster and the full video is fetched only when the user clicks Play or Download.
This behavior is especially problematic for users on metered or capped internet connections.

droopydog500

Community Manager

I moved this to a feature request.

droopy

Adobe Community Expert (not an Adobe employee)

N8.

@calm_beautyaf77 I have escalated this issue. No ETC

C

calm_beautyaf77Author

Participant

Thank you for your interest.
I performed another controlled test and measured the entire Ethernet adapter, not only Chrome DevTools.
For a single 5-second generation, Chrome reported approximately 99 MB transferred, while Windows Ethernet statistics recorded approximately 104 MB received and 8 MB sent (~112 MB total).
An idle 10-minute test on the same PC used only about 3.3 MB total, so the excessive traffic clearly occurs during Firefly video generation.
A low-bandwidth preview mode would be very helpful: load only a thumbnail initially, fetch a compressed preview when Play is clicked, and fetch the original MP4 only when Download is clicked.

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