YouTube Cinema Mode Plus by Bisht Bytes

YouTube Cinema Mode Plus transforms YouTube's built-in cinema/theater mode into a true distraction-free viewing experience.

When you activate theater mode (press 't' or click the theater button), this extension:

• Hides the top navigation bar
• Hides comments, related videos, and sidebar
• Hides video description and metadata
• Makes the video player fill your entire viewport
• Removes scrollbars to eliminate white-space gaps

When you exit theater mode, everything returns to normal — no settings to configure, no buttons to click.

Perfect for:
• Watching tutorials and coding videos without distractions
• Conference talks and presentations
• Focused viewing of any content

The extension is lightweight (pure CSS, no background processes), open source, and collects zero data.