Who should use Popup Notes?

Popup Notes is an open-source project built for firefox users who need lightweight browser-based notes.

Yes — Popup Notes is open source under the Open Source license and free to use.

What platforms does Popup Notes run on?

Popup Notes runs on the web, embeddable surfaces, and Android.

Is Popup Notes still active?

Unverified. Popup Notes has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Popup Notes?

Similar projects tracked by PulseGate include Private sticky notes, Sidebar Sticky Note, and Floating Browser Notes.

Who makes Popup Notes?

Popup Notes is developed by martins.

When did Popup Notes launch?

Popup Notes first shipped in 2025.

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Popup Notes

Name: Popup Notes
Author: martins

mozilla.orgNote-taking apps

Popup Notes is a lightweight Firefox extension for creating and managing private notes directly in the browser. It supports multiple notes, scrolling through hidden notes, and text formatting, with availability on Firefox for Android.

Open SourceWebEmbeddableAndroid

Visit mozilla.org

1alternative

5features

2025since

Overview

5 features

Popup Notes sits in PulseGate's Note-taking apps category. It focuses on taking quick private notes while browsing without leaving the Firefox browser. It is built as an open-source project for firefox users who need lightweight browser-based notes. The project is open source (Open Source). Popup Notes is available on the web, embeddable surfaces, and Android.

martins builds and maintains Popup Notes, and it first shipped in 2025. Among its 5 catalogued features are multiple notes, sticky note popup, and text formatting. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Multiple notes
Sticky note popup
Text formatting
Scrollable notes
Private storage

Built with & integrations

Runs on

BrowserEmbeddableAndroid

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed16 Sep · 02:03 UTC
Popup Notes verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Popup Notes

What is Popup Notes?: Popup Notes focuses on taking quick private notes while browsing without leaving the Firefox browser. It is catalogued under Note-taking apps on PulseGate.
Who should use Popup Notes?: Popup Notes is an open-source project built for firefox users who need lightweight browser-based notes.
Is Popup Notes free?: Yes — Popup Notes is open source under the Open Source license and free to use.
What platforms does Popup Notes run on?: Popup Notes runs on the web, embeddable surfaces, and Android.
Is Popup Notes still active?: Unverified. Popup Notes has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Popup Notes?: Similar projects tracked by PulseGate include Private sticky notes, Sidebar Sticky Note, and Floating Browser Notes.Private sticky notes Sidebar Sticky Note Floating Browser Notes
Who makes Popup Notes?: Popup Notes is developed by martins.
When did Popup Notes launch?: Popup Notes first shipped in 2025.

At a glance

Pricing: Open Source
Platforms: Web
License: Open Source
Built for: Firefox users who need lightweight browser-based notes
Model: Open source
Solves: Taking quick private notes while browsing without leaving the Firefox browser.

Registered as

Firefox Add-ons: popup-notes

Developer

martins

Index record

Indexed: 16 Sep 2026
Lifecycle: Alive
Last seen: 16 Sep 2026

Identity audit (13)

Slug: popup-notes-mozilla-org
Lifecycle state recorded: 16 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 16 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 16 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/popup-notes

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