Create a Persistent YouTube Sidebar in Firefox (Step‑by‑Step)

Create a Persistent YouTube Sidebar in Firefox (Step‑by‑Step)

What this does

Adds a persistent sidebar in Firefox so YouTube stays visible while you browse.

Steps

1. Install a sidebar extension

   • Go to Firefox Add-ons: https://addons.mozilla.org
   • Search for “Sidebar for YouTube” or “Open in sidebar” and install the extension (e.g., Sidebar for YouTube™ or a generic “Open site in sidebar” add-on).

2. Configure the extension for YouTube

   • Open the extension’s options (right-click its toolbar icon → Manage extension or click the extension icon → settings).
   • Set the URL to: https://www.youtube.com (or https://m.youtube.com for a mobile layout).
   • Enable “open in sidebar” or set the extension to use the browser sidebar by default.

3. Open YouTube in the sidebar

   • Click the extension icon or use the sidebar button (View → Sidebar → [extension name]) to open YouTube in the sidebar.
   • If using a keyboard shortcut, assign one in the extension options or Firefox Settings → Extensions Shortcuts.

4. Keep it persistent across sessions

   • In the extension options, enable “open on startup” or “restore last session” if available.
   • In Firefox, enable “Restore previous session”: Menu → Settings → General → Startup → check “Restore previous session.”
   • Pin the extension to the toolbar so you can reopen the sidebar quickly if not auto-restored.

5. Optimize layout and playback

   • Use m.youtube.com for a compact interface that fits the sidebar better.
   • Click a video’s pop‑out button (if provided) to open a video in a new tab when you need full size.
   • Mute/unmute and control playback from the sidebar; consider keyboard media keys for convenience.

Troubleshooting

• If YouTube blocks loading in the sidebar, try the mobile URL (m.youtube.com) or a different extension.
• If videos don’t play or ads block playback, disable conflicting privacy extensions for youtube.com or grant the add-on necessary permissions.
• If the sidebar won’t restore, confirm Firefox’s “Restore previous session” is enabled and the extension supports session restore.

Quick tips

• Use the mobile YouTube URL for a cleaner sidebar fit.
• Assign a keyboard shortcut to open/close the sidebar fast.
• Keep the extension updated for best compatibility.

Sources: Firefox Add-ons listings for sidebar extensions and extension options pages (addons.mozilla.org).