Go Fucking Work - Website blocker so you can get back to your fucking work
Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
Inbox Pause by Boomerang - Batch your email. Get more done.
Covid-19 Controls - Lockdown measures and tourists restrictions around the world
Boomerang for Gmail - Boomerang for Gmail is a Firefox / Chrome plugin that lets you take control of when you send and receive email messages.
TripsGuard - COVID19 travel restrictions worldwide