Self-Hosted Sidebar by Naem
Dock your self-hosted apps, Docker services and dev servers in Firefox's sidebar with vertical or horizontal tabs, an address bar, compact and auto-hide modes. Access is granted per host and nothing is collected.
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About this extension
Self-Hosted Sidebar docks the web apps you run yourself in Firefox's sidebar, so they are one keystroke away while you browse.
Think a dashboard, a media server, a home automation panel, a Vite or Next.js dev server, a docs site running in Docker, or anything else you can reach at a local or LAN address. Not affiliated with any of the projects you may choose to embed.
Tabs
- Vertical tabs in the style of Firefox and Zen, or the classic horizontal strip. Pick either in the settings.
- Essentials, Pinned and regular tabs. Essentials are icon tiles outlined in the color of their favicon. Pinned and Essential tabs have no close button, so they cannot be closed by accident.
- Named tabs. Give each app a name, or leave it blank to show the port.
- Tabs stay alive. Switching tabs keeps each app's state, scroll position and connections instead of reloading it.
- Works with any address you host: localhost, 127.0.0.1, LAN IPs, .local names, or your own domain, over http or https.
- Double-click a tab to edit it, right-click for a menu (edit, reload, pin, add to Essentials, close), drag to reorder, and close a regular tab with the x that appears on hover or with a middle-click.
Address bar
- Back, forward and reload on the left. Back and forward only appear when there is somewhere to go.
- A field showing the current address, with a copy-link button inside it. Type an address and press Enter to go there.
- A history button on the right that lists the pages you visited in that tab, so you can jump straight to one.
- A bar across the top with vertical tabs, and below the tab strip with horizontal tabs. It can be turned off, in which case back, forward and reload move to the bottom toolbar.
Layout and look
- Compact mode shrinks the vertical tab bar to a thin strip of icons. It can expand when hovered, floating over the page or pushing it aside.
- Auto-hide hides the tab bar, the address bar, or both until you hover their edge. It works on its own or together with compact mode.
- Show tabs as favicon and name, favicon only, or name only, in small, medium or large sizes.
- Choose whether Essentials get a background box on every tile, only on the selected one, or not at all.
- Show or hide the collapse button and the back and forward buttons.
- Dark interface that suits the Firefox sidebar.
- Desktop Firefox only (Firefox for Android has no sidebar API).
- Keyboard shortcut: Alt+Shift+T toggles the sidebar. You can change it under Manage Extension Shortcuts in about:addons.
Why these permissions?
- Storage: saves your tabs, your settings and each tab's recently visited pages locally.
- localhost and 127.0.0.1 (http): included by default so local dev servers work without a prompt.
- Optional access to other sites: requested one host at a time, only when you add a tab for that host or type an address on a new host.
- Web request: removes frame-blocking headers for hosts you granted, so those pages can load in the sidebar.
No extra permission is needed for the address bar, the page history, the favicon colors or the copy-link button.
Privacy
- Collects no data. The extension only contacts the addresses you add or type (to load the page and its icon). Nothing is sent to the developer or any third party.
- Your tabs, settings and the list of pages visited in each tab (address and title, up to 30 per tab) are saved locally in Firefox. A tab's list can be cleared from the history menu and is deleted when you close the tab.
- Asks for access to a host only when you add or edit a tab for it, or type an address on a host you have not granted. http://localhost and http://127.0.0.1 are included by default. You can revoke access at any time in the add-on's permissions.
Good to know
- Many sites forbid being embedded, and some break when framed (logins, cookies). For hosts you grant, the extension removes the frame-blocking headers (X-Frame-Options and the CSP frame-ancestors directive) so your own apps can load. That only applies to pages shown inside this sidebar. Large public sites and single sign-on pages may still refuse to work.
- The back and forward buttons, the live address and the page history come from a small helper script that runs only inside pages shown in this sidebar, on hosts you granted. If it cannot run on a page, the address bar shows the tab's saved address and back and forward stay hidden.
- Firefox decides which side of the window the sidebar is on. The "tab bar side" setting moves the tabs inside the sidebar panel. Use Firefox's own sidebar settings to move the whole sidebar.
- For an https app with a self-signed certificate, open it once in a normal tab and accept the certificate, and it will then load in the sidebar.
- Firefox unloads sidebar content when the sidebar is closed or switched to another panel such as History, so apps reload the next time you open it.
Think a dashboard, a media server, a home automation panel, a Vite or Next.js dev server, a docs site running in Docker, or anything else you can reach at a local or LAN address. Not affiliated with any of the projects you may choose to embed.
Tabs
- Vertical tabs in the style of Firefox and Zen, or the classic horizontal strip. Pick either in the settings.
- Essentials, Pinned and regular tabs. Essentials are icon tiles outlined in the color of their favicon. Pinned and Essential tabs have no close button, so they cannot be closed by accident.
- Named tabs. Give each app a name, or leave it blank to show the port.
- Tabs stay alive. Switching tabs keeps each app's state, scroll position and connections instead of reloading it.
- Works with any address you host: localhost, 127.0.0.1, LAN IPs, .local names, or your own domain, over http or https.
- Double-click a tab to edit it, right-click for a menu (edit, reload, pin, add to Essentials, close), drag to reorder, and close a regular tab with the x that appears on hover or with a middle-click.
Address bar
- Back, forward and reload on the left. Back and forward only appear when there is somewhere to go.
- A field showing the current address, with a copy-link button inside it. Type an address and press Enter to go there.
- A history button on the right that lists the pages you visited in that tab, so you can jump straight to one.
- A bar across the top with vertical tabs, and below the tab strip with horizontal tabs. It can be turned off, in which case back, forward and reload move to the bottom toolbar.
Layout and look
- Compact mode shrinks the vertical tab bar to a thin strip of icons. It can expand when hovered, floating over the page or pushing it aside.
- Auto-hide hides the tab bar, the address bar, or both until you hover their edge. It works on its own or together with compact mode.
- Show tabs as favicon and name, favicon only, or name only, in small, medium or large sizes.
- Choose whether Essentials get a background box on every tile, only on the selected one, or not at all.
- Show or hide the collapse button and the back and forward buttons.
- Dark interface that suits the Firefox sidebar.
- Desktop Firefox only (Firefox for Android has no sidebar API).
- Keyboard shortcut: Alt+Shift+T toggles the sidebar. You can change it under Manage Extension Shortcuts in about:addons.
Why these permissions?
- Storage: saves your tabs, your settings and each tab's recently visited pages locally.
- localhost and 127.0.0.1 (http): included by default so local dev servers work without a prompt.
- Optional access to other sites: requested one host at a time, only when you add a tab for that host or type an address on a new host.
- Web request: removes frame-blocking headers for hosts you granted, so those pages can load in the sidebar.
No extra permission is needed for the address bar, the page history, the favicon colors or the copy-link button.
Privacy
- Collects no data. The extension only contacts the addresses you add or type (to load the page and its icon). Nothing is sent to the developer or any third party.
- Your tabs, settings and the list of pages visited in each tab (address and title, up to 30 per tab) are saved locally in Firefox. A tab's list can be cleared from the history menu and is deleted when you close the tab.
- Asks for access to a host only when you add or edit a tab for it, or type an address on a host you have not granted. http://localhost and http://127.0.0.1 are included by default. You can revoke access at any time in the add-on's permissions.
Good to know
- Many sites forbid being embedded, and some break when framed (logins, cookies). For hosts you grant, the extension removes the frame-blocking headers (X-Frame-Options and the CSP frame-ancestors directive) so your own apps can load. That only applies to pages shown inside this sidebar. Large public sites and single sign-on pages may still refuse to work.
- The back and forward buttons, the live address and the page history come from a small helper script that runs only inside pages shown in this sidebar, on hosts you granted. If it cannot run on a page, the address bar shows the tab's saved address and back and forward stay hidden.
- Firefox decides which side of the window the sidebar is on. The "tab bar side" setting moves the tabs inside the sidebar panel. Use Firefox's own sidebar settings to move the whole sidebar.
- For an https app with a self-signed certificate, open it once in a normal tab and accept the certificate, and it will then load in the sidebar.
- Firefox unloads sidebar content when the sidebar is closed or switched to another panel such as History, so apps reload the next time you open it.
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Permissions and data
Required permissions:
- Access your data for localhost
- Access your data for 127.0.0.1
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 2.0.1
- Size
- 48.7 KB
- Last updated
- 7 days ago (Nov 5, 2026)
- Related Categories
- License
- MIT License
- Version History
- Tags
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