Using the Firefox Tabulator Extension

Create tab groups, stash and unload tabs in Firefox with Tiled Tab Groups - gHacks Tech News

SOLVED] Firefox loading two browser windows on launch, Check One Tab extension before you go off :P - Applications - EndeavourOS

🦊 Taskade Firefox Extension – Documentation

Tab List Board – Get this Extension for 🦊 Firefox (en-US)

Firefox OneTab - One tab to rule them all

Refresh tabs automatically in Firefox and Chrome with Tab Reloader - gHacks Tech News

GitHub - hongde88/firefox-workspace-manager: A Firefox extension that groups tabs into workspaces through the hide and show tab APIs.

Multiple Tab Handler – Get this Extension for 🦊 Firefox (en-US)

Tabliss Is A New Tab Plugin For Firefox and Chrome

New Tab Tools – Get this Extension for 🦊 Firefox (en-US)

Open in Firefox

Add private tabs instead of private windows in Firefox

Work with the Tabs API - Mozilla

GitHub - piroor/treestyletab: Tree Style Tab, Show tabs like a tree.

Top 10 Tips and Tools for Managing Too Many Browser Tabs