BrowsMainer Online

Mainbrows Fabric 0.6.0-alpha Changelog

Release date: July 31, 2026

Controls

• Corrected browser scrolling so that it now follows the mouse wheel direction.
• Leaving browser control mode now requires holding ESC for two seconds.
• While ESC is held, the action bar displays the remaining time before browser control mode is closed.
• A short ESC press is still forwarded to the website, for example to exit a fullscreen video.
• Right-clicking a display now connects the player to its local browser session in single-player worlds.
• A clear chat message confirms when the player connects to a display.

Browser Toolbar

• The toolbar height now adapts to the display size and aspect ratio.
• Small displays no longer receive an unnecessarily one-block-high toolbar.
• Back, forward, and reload buttons scale together with the toolbar.
• Fixed the broken reload button.
• The displayed URL now updates automatically after navigation within a website.
• Periodic URL synchronization corrects the toolbar if a navigation event is missed.
• Minecraft latency, stream latency, and buffer status are displayed compactly in the toolbar.

Audio

• Completely redesigned the audio settings interface.
• Each display has its own card with display selection, volume control, and audio mode.
• Available audio modes: Stereo, Mono, and Off.
• The playback device can be selected separately for each display.
• The status indicates whether the selected display is connected and whether stream audio is being received.
• Long display lists can be navigated using the mouse wheel or scrollbar.
• During buffered playback, audio packets are queued ahead of time and continuously supplied to JavaSound instead of being submitted at the last moment.
• Audio output now pauses correctly while playback is paused or the buffer is being rebuilt.

Buffering and Playback

• The client now calculates the actual remaining buffered media time from the playback timeline.
• Short network interruptions consume only the corresponding amount of buffered time instead of triggering an underflow after a fixed 500 milliseconds.
• Rebuffering begins only when playback actually reaches the safety margin.
• Audio packets older than the agreed playback start position are discarded.
• Buffered playback uses consistently timestamped JPEG and PCM packets, preventing irregular FFmpeg output chunks from causing brief stutters.
• The buffer indicator and playback clock continue to update during playback.
• Added three regression tests covering buffer consumption, the underflow threshold, and loading progress.

Media Compatibility

• Improved TikTok codec detection and media error diagnostics.
• Added a temporary WebM fallback for TikTok media that cannot be played directly.
• H.264/Opus and JPEG/PCM transport paths are selected according to the playback mode.

Known Limitations

• Widevine/DRM is not included in this release. DRM-protected services such as Crunchyroll may therefore still fail with errors such as KAT-6005.
• TikTok may block the WebM fallback with a CDN HTTP 403 response. Affected videos still cannot be played when this happens.
• Enabling a playback buffer intentionally delays visible input responses and media playback by the configured buffer duration.

Compatibility

• Minecraft 1.21.11
• Java 21 or newer
• Fabric Loader 0.19.3 or newer
• Fabric API required
• Paper servers require the matching Mainbrows Paper plugin.