Who should use Thoughtmark?

Thoughtmark is a consumer product built for students, researchers, and AI users managing long chat conversations.

What platforms does Thoughtmark run on?

Thoughtmark runs on the web, embeddable surfaces, and Android.

Is Thoughtmark still active?

Unverified. Thoughtmark 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.

Who develops Thoughtmark?

Thoughtmark is developed by cedric Lekene.

When did Thoughtmark launch?

Thoughtmark first shipped in 2026.

Back to the index

Thoughtmark

Name: Thoughtmark
Author: cedric Lekene

mozilla.orgKnowledge base & wikis

Thoughtmark is a Firefox extension that bookmarks exact passages, formulas, and code snippets in Claude, ChatGPT, Gemini, and DeepSeek conversations. It re-anchors saved items, provides cross-chat search, and exports structured outlines as Markdown or PDF for students, researchers, and other AI users.

WebEmbeddableAndroid

Visit mozilla.org

Overview

8 features

In the Knowledge base & wikis space, Thoughtmark takes a focused approach. It focuses on keeping important passages, code, formulas, and notes organized across long AI conversations. It is built as a consumer product for students, researchers, and AI users managing long chat conversations. It ships for the web, embeddable surfaces, and Android.

Behind Thoughtmark is cedric Lekene, and it first shipped in 2026. Among its 8 catalogued features are precision bookmarking, auto-recovery anchors, and cross-chat search. The interface is available in 32 languages, including Czech, German, and Greek.

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

Precision bookmarking
Auto-recovery anchors
Cross-chat search
Conversation outlines
Markdown export
PDF export
Code bookmarking
Formula bookmarking

Built with & integrations

AI providers

anthropicmultiple

Connectors

chrome

Runs on

BrowserEmbeddableAndroid

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sep · 02:19 UTC
Thoughtmark — AI Notes & Outlines verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Thoughtmark

What is Thoughtmark?: Thoughtmark focuses on keeping important passages, code, formulas, and notes organized across long AI conversations. It is catalogued under Knowledge base & wikis on PulseGate.
Who should use Thoughtmark?: Thoughtmark is a consumer product built for students, researchers, and AI users managing long chat conversations.
What platforms does Thoughtmark run on?: Thoughtmark runs on the web, embeddable surfaces, and Android.
Is Thoughtmark still active?: Unverified. Thoughtmark 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.
Who develops Thoughtmark?: Thoughtmark is developed by cedric Lekene.
When did Thoughtmark launch?: Thoughtmark first shipped in 2026.
What languages does Thoughtmark support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Paid · pricing page detected
Platforms: Web
First seen: 12 Sep 2026
Built for: students, researchers, and AI users managing long chat conversations
Model: B2C
Solves: Keeping important passages, code, formulas, and notes organized across long AI conversations.

Registered as

Firefox Add-ons: thoughtmark

Developer

cedric Lekene

Index record

Indexed: 12 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 12 Sep 2026

Identity audit (13)

Slug: thoughtmark-ai-notes-outlines-mozilla-org
Lifecycle state recorded: 12 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 12 Sep 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
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: 12 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/thoughtmark

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do

MindMarksmindmarks.io