Sidebar Tab

Give your browser an extra tab! Open and navigate websites directly within a sidebar, enabling seamless dual-panel browsing and productivity boosts.

[ATTENTION - Disable other extensions which request mobile sites to use Sidebar Tab with its full potential without interrupting the extension's capability]

Take your Firefox browsing to the next level with Sidebar Tab! Designed for multitaskers, developers, and efficient web users, this extension provides a robust sidebar for browsing websites, navigating content, and managing shortcuts—all while keeping your main browsing experience uninterrupted.

Key Features: Open Any Website in the Sidebar: Easily load any HTTP/HTTPS website and navigate directly within the sidebar. Custom Navigation Bar: Includes buttons to go back, forward, or to the home page, plus a toggle to switch between desktop and mobile views. Keyboard Shortcuts for Efficiency:

  • Open Sidebar: Shift + Alt + N
  • Refresh Navigation Bar: Shift + Alt + M
  • Open Sidebar Tabs Outside (Background): Ctrl + Click*
  • Open Sidebar Tabs Outside (Foreground): Alt + Click*
  • Copy the current URL to clipboard: Click*
  • Toggle Address Bar display: Double Click* vertical ellipsis icon
  • Click on the URL bar in navigation menu.
Quick Search Integration: Select text and search with six pre-configured search engines directly within the sidebar. Search easily from the input field or the context menu. Dynamic Shortcuts: Add custom links to the sidebar for instant access to your favorite or frequently used websites. Flexible Bookmark Access: Open any bookmark directly in the sidebar via the context menu. Address Bar Integration: Open the current tab in the sidebar instantly with a single click. Contextual Tab Opening: Click anywhere on a page and open that link directly in the sidebar via the context menu.

Why Choose Sidebar Tab? Whether you’re researching, testing web layouts, or managing multiple tabs, this extension enhances your multitasking potential by enabling a split-view experience. Toggle desktop or mobile views, copy URLs, or customize navigation—all designed to streamline your workflow and productivity.

Perfect For: Web developers testing responsive designs. Content creators managing multiple sources simultaneously. Professionals who need quick access to frequently used sites or tools. Anyone who loves an organized, multitasking browsing experience!

Permissions Required:

Access Bookmarks: To enable sidebar bookmark navigation. Access Active Tab: For opening active tabs in the sidebar. Access Browser Context Menu: For enabling the "Search in Sidebar" and "Open in Sidebar" options. Network Requests: For enabling the mobile view of websites. Access to websites: For showing the navigation bar.

Get Started Now: Download Multi-Site Sidebar Navigator today and unlock the power of multitasking with your Firefox browser.

Update v2.0.0:

  • UI Redesign...
  • Added option to hide link action (edit/delete) button until hovered over the link...
  • Added option to show URL along with the link title...
  • Drag and Drop to reorder shortcut links...
  • Select multiple links to delete at once...
  • Drag and drop link on empty area to visit link...
  • Drag and drop link to ADD + button to add link to shortcut. Dragging link over top half of button will add link to start of shortcut link and end half will add link to end of list...
  • Drag and drop link on Location hint in navigation bar to visit the dropped link page...
Update v2.1.0: - Added Option to change Theme Accent Color to minimal to use simple black or white colored theme.

DISCLAIMER: The Google logo displayed in the extension's interface is not affiliated with or endorsed by this extension. It is used solely for demonstration purposes to showcase the dual-pane functionality (Sidebar Tab) by featuring the Google Search Engine's homepage. Any brand logo and/or icon with respective name is displayed in screenshot above for demonstration purpose only and has no affiliation to the developer or Sidebar Tab. All copyrights and trademark rights are reserved to their respective owners.

Manifest V3 Add-on
By:
Shailendra
Daily users:
47 2
Rating:
4.20
(5)
Version:
2.1.0 Last updated: 2025-06-30
Version code:
5979334
Creation date:
2024-11-27
Risk:
Very high risk impact Moderate risk likelihood
Permissions:
  • contextMenus
  • activeTab
  • tabs
  • storage
  • bookmarks
  • webRequest
  • webRequestBlocking
  • declarativeNetRequest
  • webNavigation
Host permissions:
  • <all_urls>
Size:
209.83KB
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Data ingested on:
2025-07-14

User reviews

by An*****, 2025-04-23

Its the only barely functional split view for firefox despite YEARS of begging them to create one. Edge, Chrome and Opera all have it. This extension is not perfect. You cannot resize this side window. its fixed for me. But its better than absolutely nothing.
by an*****, 2025-04-19

Has potential, but every time I close it, the page is gone, and I have to open again. Plus, an autohide and show on hover would be great. (Tested on Zen)
by Fi*****, 2025-04-05
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Sidebar Tab requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Medium ****** ** ********* *** ******* ******** **** **** *********** *** ********* *** ********* ******* *** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Sidebar Tab is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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