Browser limitations
Known browser limitations and workarounds for Mont
Mont runs entirely in your browser, which brings some limitations compared to native applications. Understanding these helps you work around them.
Browser support
Mont requires Chrome or Edge 94 or later. See System requirements for details on why Firefox and Safari aren't supported.
Memory constraints
Browsers have memory limits that affect large projects:
Symptoms of memory pressure:
- Slow timeline scrolling
- Playback stuttering
- Browser tab crashing
Mitigations:
- Close other browser tabs
- Restart your browser periodically on long editing sessions
- Export long videos in sections if needed
Mont streams exports directly to disk to avoid memory limits during export.
File access restrictions
Browsers restrict file system access for security:
- Import: Files are copied into browser storage, not referenced from disk
- Export: You must select a save location each time (via File System Access API)
- Auto-save: Projects save to cloud storage, not local files
Screen recording limitations
Display selection: You can only record displays you explicitly share via the browser dialog. Mont cannot access your screen without permission.
Audio capture: System audio (from other apps) is only available when sharing a browser tab. Entire screen or window capture doesn't include system audio—only your microphone.
Resolution: Recording resolution depends on what you share. If you share a 1080p window, that's the maximum capture resolution.
Camera and microphone
Permissions: You must grant permission for camera and microphone access. If denied, you'll need to reset permissions in browser settings.
Device changes: If you unplug a camera or microphone during recording, the recording may stop or fail. Connect devices before starting.
Performance considerations
Hardware acceleration: Mont uses WebCodecs for hardware-accelerated encoding. If your GPU doesn't support H.264 encoding, software encoding is used (slower).
Background tabs: Browser tabs in the background may be throttled, affecting playback timing. Keep Mont in the foreground during playback and recording.
Storage limits
Browser storage has quotas that vary by browser and available disk space. If you see storage errors:
- Clear browser cache and storage for other sites
- Free up disk space
- Export and delete completed projects
Workarounds for common issues
| Issue | Workaround |
|---|---|
| Tab crashes on large project | Export in shorter sections |
| Recording stops unexpectedly | Check device connections, permissions |
| Slow export | Close other tabs, ensure disk space |
| Playback stutters | Reduce preview quality, close other tabs |
| Can't select microphone | Check browser permissions in settings |
For more solutions, see Troubleshooting.