Known limitations in Firefly video editor

Last updated on Oct 27, 2025

Learn about the limitations you might encounter while working with Firefly video editor.

Firefly video editor access

Browser compatibility for Firefly video editor

Firefly video editor is currently supported only on the Chrome desktop browser. If you're using Edge, Firefox, Safari, or any other browser, you may not be able to access all features yet. 

Device compatibility for Firefly video editor

Firefly video editor is currently compatible with macOS and Windows operating systems, with the following specifications:

  • Macs with Apple silicon (ARM-based) processors
  • Macs with Intel processors
  • Windows machines with Intel processors

Firefly video editor user interface

Languages not supported in the user interface

The Firefly video editor user interface supports all major languages, except the following:

  • Bengali
  • Czech
  • Greek
  • Hungarian
  • Russian
  • Tamil
  • Ukranian

If opened in an unsupported language, the editor will default to your preferred language as set in your Adobe account. To check your preferred language, go to your Adobe account, select Edit profile, then scroll down to Preferred languages.

Working with Firefly video editor

File size and duration limitation

Each file added to the video editor must be under 20 GB in size and no longer than 4 hours in duration. The editor currently does not support files that exceed either the size or time limit.

Video and image files must not exceed a resolution of 3840 x 3840 pixels to be imported.

Thumbnails not generated for certain videos

Thumbnail generation in the timeline is unavailable for media files with dimensions exceeding 3840 pixels.

Working with GIF and WEBP files

Animated GIF and WEBP files do not retain their animation when added to the timeline. Only the first frame is displayed, even though the file appears animated in the Your media panel.

Videos generated with the Transparent background option

If you use the Generation history panel to add a video generated with the Transparent background option, it may not appear as expected. This is because generated videos with transparent backgrounds are not fully supported in the Firefly video editor at this time.

Transcription is available in select languages

Currently, the Text-based editing feature has been tested for the support of audio content spoken in the following languages:

  • English
  • Hindi
  • Japanese
  • Indonesian
  • Portuguese
  • German
  • Spanish
  • French
  • Korean
  • Italian

If the spoken audio is in other languages, it may result in inaccurate or incomplete transcription.