The requested module './ffmpeg.min.js' does not provide an export named 'FFmpeg'

**background.js**
```
import "./ffmpeg/ffmpeg-core.js";
import "./ffmpeg/ffmpeg.min.js";
import { FFmpeg } from "./ffmpeg/ffmpeg.min.js"; // error here
```

**manifest.json** (relevant parts):
```
{
"name": "Example",
"description": "Example",
"version": "1.0",
"manifest_version": 2,
"background": {
"service_worker": "background.js",
"type": "module"
},
"permissions": [
"storage",
"activeTab",
"scripting",
"downloads"
],
"content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'"
}
```

Error:
```
Uncaught SyntaxError: The requested module './ffmpeg/ffmpeg.min.js' does not provide an export named 'FFmpeg' (at background.js:3:10)
```

Directory structure:
```
│ .gitattributes
│ background.js
│ contentScript.js
│ LICENSE
│ manifest.json
│ popup.css
│ popup.html
│
├───ffmpeg
│ ffmpeg-core.js
│ ffmpeg-core.wasm
│ ffmpeg-core.worker.js
│ ffmpeg.min.js
│ ffmpeg.min.js.map
```

No idea where to go from here.