Guides
The same extension, from Firefox Add-ons: save any tab with a time, close it, and the page comes back on schedule. Here is the Firefox setup — and the two platform differences stated up front, not discovered later.
Setup
One click on the AMO listing — reviewed by Mozilla, no account, and no permissions beyond what a reminder needs.
Firefox tucks new extensions into the extensions button. Click it, then the gear beside Latr, then “Pin to Toolbar” — the icon carries the countdown badge, so it is worth having in sight.
The page is filed at your default time with no popup at all. For a specific moment, open the popup and write it in plain language — “tomorrow 9am”, “next friday” — in any of the nine languages Latr parses.
Straight answers
Neither is a missing feature — both are how the Firefox platform works, and both have a clean answer. You should know them before installing, not after.
Firefox notifications cannot carry action buttons — no extension's can. So the snooze options Chrome shows on the toast sit in the Latr popup instead, where a just-fired reminder is at the top of the queue, one click from “ten more minutes” or “tomorrow morning”. Clicking the toast itself still opens your saved page.
Reminders can follow you across your own machines through Firefox Sync — and no further, because there is no Latr server to bridge browsers. Moving to or from Chrome is a JSON export in one browser and an import in the other: everything travels, schedules included.
Notifications silent? On Windows and macOS the switch is the operating system's, not Firefox's — the two-minute fix.
Questions
Yes — same features, same nine languages, same privacy architecture, built from the same code. Reminders, plain-language dates, repeats, quiet hours, snooze, tags, calendar handoff and export all work identically. The differences that exist come from the Firefox platform itself, not from a cut-down build.
Firefox notifications do not carry action buttons — that is a Firefox platform limit, not a Latr choice. So where Chrome shows snooze buttons on the toast itself, on Firefox you snooze from the Latr popup instead: the reminder is right at the top of the queue when it fires, one click away. Clicking the notification still opens the saved page, exactly as on Chrome.
No — each browser’s extension storage is its own world, and there is no Latr server to bridge them (that is the privacy promise working as intended). Within Firefox, reminders can ride Firefox Sync across your own machines. To move between browsers, export a JSON backup in one and import it in the other; it carries everything, schedules included.
If you allow it to — Firefox asks per-extension whether it may run in private windows, and it is off by default. Reminders saved in normal windows fire regardless; allowing private-window access only matters if you want to save pages from a private window itself.
Firefox owns extension shortcuts: open about:addons, click the gear menu, choose “Manage Extension Shortcuts”, and set the combination you prefer for Latr. Latr reads the real binding back, so its tips always show the key you actually chose.
Free, no account, and nothing leaves your device. About ten seconds to install, and one keystroke to use.
Also on Brave, Vivaldi, Arc and Opera — straight from the Chrome Web Store listing.
