Download MS Office 365 Apps for Firefox. Main applications from Microsoft Office 365 Business and Personal.
Install Office apps from Office 365 - Microsoft Support
Tab Stash – Get this Extension for 🦊 Firefox (en-US)
Container Tab Groups – Get this Extension for 🦊 Firefox (en-US)
Office Opener – Get this Extension for 🦊 Firefox (en-US)
Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac - Microsoft Support
The Microsoft 365 apps are adding new features, and the browser extension has a new look. - Neowin
MS Office 365 Apps – Get this Extension for 🦊 Firefox (en-US)
Microsoft extensions collection
Quick Copy Roblox IDs – Get this Extension for 🦊 Firefox (en-US), id for roblox items
Task Management System – Get this Extension for 🦊 Firefox (en-US)