What does FireCsv do?

FireCsv focuses on viewing raw CSV files in Firefox or Thunderbird without readable formatting. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use FireCsv?

FireCsv is an open-source project built for firefox and Thunderbird users who work with CSV files.

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

What platforms does FireCsv run on?

FireCsv runs on the web and embeddable surfaces.

Is FireCsv still active?

Unverified. FireCsv 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.

FireCsv is developed by metagriffin.

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FireCsv

Name: FireCsv
Author: metagriffin

github.comBrowser DevTools & extensions

FireCsv is an open-source browser and email-client extension that displays CSV files as formatted tables within Firefox and Thunderbird. It is intended for users who need to inspect CSV data without opening a separate spreadsheet application.

Open SourceWebEmbeddable

Visit github.com

Overview

4 features

In the Browser DevTools & extensions space, FireCsv takes a focused approach. It focuses on viewing raw CSV files in Firefox or Thunderbird without readable formatting. FireCsv is an open-source project aimed at firefox and Thunderbird users who work with CSV files. FireCsv is open source under the Open Source license. It runs on the web and embeddable surfaces.

It is developed by metagriffin, and it first shipped in 2014. Among its 4 catalogued features are CSV file viewing, formatted tables, and firefox support.

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

CSV file viewing
Formatted tables
Firefox support
Thunderbird support

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed13 Sep · 07:49 UTC
FireCsv verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about FireCsv

What does FireCsv do?: FireCsv focuses on viewing raw CSV files in Firefox or Thunderbird without readable formatting. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use FireCsv?: FireCsv is an open-source project built for firefox and Thunderbird users who work with CSV files.
Is FireCsv free?: Yes — FireCsv is open source under the Open Source license and free to use.
What platforms does FireCsv run on?: FireCsv runs on the web and embeddable surfaces.
Is FireCsv still active?: Unverified. FireCsv 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 makes FireCsv?: FireCsv is developed by metagriffin.
How long has FireCsv been around?: FireCsv first shipped in 2014.
Is FireCsv open source?: Yes — FireCsv is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 13 Sep 2026
Built for: Firefox and Thunderbird users who work with CSV files
Model: Open source
Solves: Viewing raw CSV files in Firefox or Thunderbird without readable formatting.

Registered as

Firefox Add-ons: firecsv

Developer

metagriffin

Index record

Indexed: 13 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 13 Sep 2026

Identity audit (13)

Slug: firecsv-github-com
Lifecycle state recorded: 13 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 13 Sep 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
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: 13 Sep 2026
Canonical URL: https://github.com/metagriffin/firecsv

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