https://www.firefox.com/en-US/features/adblocker/
The ad blocker – a tool for a personalized & focused browsing experience. — Firefox.com
ad blockertoolpersonalized
https://www.gettoby.com/next
Next: Tab To-Do List for Focused Browsing - Toby — Toby
Turn your open tabs into a focused to-do list with Toby Next. Add what matters, close the clutter, and return when you are ready. No forgetting, no starting...
focused browsingnexttablist