SideSurf by Caíque Gaspar

A persistent sidebar mini-browser with tabs, tiling layouts, and smart navigation.

About this extension

SideSurf is an advanced Firefox extension that brings a fully functional mini-browser pinned to your sidebar.

Unlike Firefox’s native split view, SideSurf remains visible regardless of the active tab, making it perfect for multitasking, monitoring dashboards, documentation, or mobile previews.

Key Features:

• Real Navigation – Full URL bar with smart autocomplete, internal history, and native reload.
• Tab Isolation – Manage up to 6 simultaneous tabs inside the sidebar.
• Flexible Layouts – Switch between tabbed view or smart tiling grid.
• Link Control – Keeps navigation inside the extension.
• Persistence – Tabs, zoom, and history are saved automatically.
• Internationalization – Multi-language support and automatic dark/light theme integration.

SideSurf is ideal for developers, traders, researchers, and anyone who needs constant access to secondary content without leaving their main workflow.

Developer comments

This extension uses the webRequest API in a limited and scoped manner to improve compatibility of embedded content within the sidebar.
All modifications are restricted to sub-frame requests associated with the extension (tabId === -1) and do not affect normal browsing tabs.
No user data is collected, stored externally, or transmitted. All data remains local using Firefox storage APIs.
The extension does not execute remote code.

This project is completely open-source, check the code at: https://github.com/caiquegaspar/SideSurf

Rated 0 by 0 reviewers

Support this developer

The developer of this extension asks that you help support its continued development by making a small contribution.

Contribute now

SideSurf by Caíque Gaspar

Required permissions:

Data collection: