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Preview of Side Space - AI Powered Vertical Tab Manager

Side Space - AI Powered Vertical Tab Manager by Side Space

Your AI-powered vertical tabs manager for browsing.

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Side Space | Your AI-powered vertical tabs manager for browsing.Spaces dedicated to work and life.Never worry about losing tabsAI-Powered Tab GroupingTab Group Guarding
About this extension
Alternative to Arc's Sidebar/Edge's Vertical Tabs.

It allows you to have more control over your web browsing experience by effectively managing multiple tabs at once.

🚀 How do vertical tabs work?

Enabling the vertical tabs setting moves your open tabs from the top of your browser window (above the address bar) to the left side of the window. This allows the tabs to be displayed vertically, stacked one on top of the other, instead of horizontally.

✨ Features
  • ⚡️ Manage tabs and tab groups efficiently with a vertical tabs panel.
  • 🗂️ You can now save, restore, and reorder tabs, including tab groups, using drag-and-drop functionality.
  • 🔄 The Vertical Tabs Panel presents your open tabs in a side-by-side layout.
  • 🔍 Efficiently search multiple tabs using fuzzy search.
  • 🧹 To save memory, you can suspend open tabs.
  • ☁️ Enable cross-browser cloud synchronization with a single login.
  • 🌛 Dark Mode Support.
  • 💾 Space Backup Solution
  • 📑 Save your session as a JSON file
  • ☁️ Cloud sync by login
  • ✨ AI-powered Tab Grouping
  • 🔗 Group Guardian, Auto Grouping your tabs within URL matchers

👍 The advantages of vertical tabs

Vertical tabs are an effective solution for avoiding clutter in your browser window and maximizing your on-screen space. Additionally, they enhance tab visibility for easier identification.

PS: Side Space is a futuristic vertical tab manager that can only be used with Firefox version 139 or above.
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Permissions and dataLearn more

Required permissions:

  • Display notifications to you
  • Access browser tabs
  • Access your data for www.sidespace.app
  • Access your data for sidespace.app

Optional permissions:

  • Access your data for all websites
More information
Add-on Links
  • Homepage
  • Support site
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Version
1.2.2
Size
2.38 MB
Last updated
19 days ago (Aug 26, 2025)
Related Categories
  • Search Tools
  • Tabs
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