Tabglutton Firefox

Tabglutton

By: mlsimon Add-on
Close duplicate tabs by canonical URL, and file the keepers into your Obsidian vault as clean markdown before closing them. Includes an optional local MCP server so a coding agent can triage your tabs. No telemetry, no account.

Features & Capabilities

You open thirty tabs a day out of mild interest. Some are honest duplicates — the same thread reached from two links, the same repo opened twice. Most are things you have already mentally finished but don't want to lose. They belong in a notes vault, not in the tab strip. So they sit there, and by Friday there are four hundred of them.

Tabglutton does three things about that.

DEDUP

The toolbar badge counts duplicate tabs. Open the popup to see them grouped by canonical URL, then close them all in one action.

URLs are canonicalized before comparison: lowercased host, "www." and trailing slash stripped, tracking parameters (utm_*, fbclid, gclid, si, …) dropped, remaining parameters sorted, and optionally the #fragment removed. So two links to the same page match even when they don't look alike.

The tab you touched most recently is the one kept. A toast offers Undo for six seconds and restores closed tabs to their original positions.

DEVOUR — INTO OBSIDIAN

Select the tabs worth keeping and press Devour. Each one is read through Defuddle — the same extractor behind Obsidian's own Web Clipper — formatted as markdown with frontmatter (title, source URL, author, site, published date), filed into your vault under Clippings/, and closed.

The full-screen Devour cockpit is the workspace for it: tabs grouped by host, an inspector showing exactly where each note will land, and keyboard triage throughout. j/k to move, space to select, d to devour, x to close, / to filter.

AGENT BRIDGE (OPTIONAL)

This is the part that isn't like other tab extensions.

Tabglutton ships a local MCP server. Turn the bridge on in settings, point Claude Code or Codex at it, and your agent can work your actual open tabs — list them, wake the ones the browser unloaded, read them, clip the good ones into Obsidian, close the noise. "Go through my 400 tabs, tell me what's worth keeping, and clear the rest" becomes something you can simply ask for.

It is deliberately hard to make dangerous. The bridge is off until you enable it. It binds to loopback only, authenticates with a token you generate that never crosses the wire, and checks the extension's origin. Waking tabs is a second, separate opt-in. Nothing is ever closed that Undo could not put back.

PRIVACY

No analytics, no telemetry, no remote server, no account. Page content is extracted in your browser and goes to exactly two places, both on your own machine: your Obsidian vault, and — only if you turn the bridge on — a local MCP server. The developer receives nothing.

The full source is public: https://github.com/mlsimon734/tabglutton

ZEN BROWSER

Zen gives extensions no workspace API, so "active workspace" scope is a heuristic (tab.hidden === false). If it misreads, the popup tells you and you can switch to current-window scope in settings.

User Growth & Download Statistics

Manifest V3 Add-on
By:
mlsimon
Daily users:
-
Version:
0.4.1 Last updated: 2026-08-30
Version code:
6448121
Creation date:
2026-05-15
Firefox add-on GUID:
tabglutton@addons.local
Firefox add-on numeric ID:
3013769
Firefox on Android:
Yes
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • *://*/*
Size:
837.92KB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-05
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
mlsimon
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/tabglutton/
Website:
https://github.com/mlsimon734/tabglutton

Permission Change History

2026-08-30: Version 0.4.0 → 0.4.1
Add Permissions: tabGroups
2026-08-22: Version 0.3.1 → 0.4.0
Add Optional permissions: downloads

Is Tabglutton Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Tabglutton requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** ******* *** ********* ********* ******** ***** *** ** ********** ****** * ******** ******* *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Tabglutton may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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