Keeptoit от Alek

Keeptoit keeps you on the thing you sat down to do.

Plan a focus session, say what it is for ("linear algebra, chapter 4") with the topics it covers ("eigenvalues", "diagonalization"), and Keeptoit checks every page you open and every search you make against it. A page that fits opens. A page that doesn't goes to a blocked page, and you can save it to Do Later for after.

• Sessions and a calendar: plan blocks ahead, with breaks, free days and a weekly goals plan.
• Page checks by intention, not by a blocklist: a video about the lecture opens; a video about something else doesn't. Always-allowed sites are never checked.
• Feeds off, search on: the home feeds of YouTube, Instagram, Reddit and Pinterest are hidden, and YouTube's search shows only the videos that fit.
• Strict mode, when you want it hard to cheat: windows you can't leave, and an honest log of every override.
• Time tracking and stats: where your time went and how much of it stayed on topic, day by day and week by week, with goal alignment, streaks and achievements.
• Do Later: blocked pages, searches and quick notes are kept for when your focus block is done.
• Your new tab: ready-made layouts, your shortcuts and your own photos as polaroids, arranged however you like.
• Keyboard shortcuts for everything.

What is sent: during a focus block, Keeptoit sends the page's address, title and short description (or your search words) with the block's topics to Keeptoit's server, which asks an AI model (Jev, from TypeSafe) whether it fits. Nothing about the page is stored by the server. Firefox shows this data when you install Keeptoit, and the first run asks you to agree before anything is sent. Your sessions, goals, history and settings stay in your browser. With the one-time own-key licence you can use your own AI provider key instead, and then nothing goes through Keeptoit's server. Privacy: https://keeptoit.com/privacy

Free to use: full page checking for your first week, then an hour of AI checking a day, with everything else included. Pro (paid, sold by Keeptoit through Lemon Squeezy, not by Mozilla) adds more AI checking time and features.

New tab: Keeptoit replaces Firefox's new tab page with its session screen. On days off, and outside a session if you pick "Only during a session" (Settings → Sessions → New tabs), it shows your own new tab instead, which you can make your own. Firefox asks once whether to keep the change; keep it for the best experience.

Works in Firefox 142 or later and in Zen. Zen has no new tab page, so your new tab shows in Firefox only.