Who should use Office Web?

Office Web is a consumer product built for firefox users who need to view office documents online.

Yes — Office Web is free to use.

What platforms does Office Web run on?

Office Web runs on the web and embeddable surfaces.

Is Office Web still active?

Unverified. Office Web 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 Office Web?

Similar projects tracked by PulseGate include Online Docs Viewer, DOCX Viewer, and WebPDF.

Who develops Office Web?

Office Web is developed by Houbo.

How long has Office Web been around?

Office Web first shipped in 2022.

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Office Web

Name: Office Web
Author: Houbo

mozilla.orgBrowser DevTools & extensions

Office Web is a Firefox extension that intercepts downloads of office documents and opens them in an online viewer. It supports common Word, PowerPoint, Excel, and OpenDocument formats, with options to download the viewed file afterward.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

Office Web sits in PulseGate's Browser DevTools & extensions category. It focuses on viewing office documents in a browser without downloading them to a local office application. It is built as a consumer product for firefox users who need to view office documents online. It is available for free. Office Web is available on the web and embeddable surfaces.

Behind Office Web is Houbo, and it first shipped in 2022. Key capabilities include online document viewing, download interception, and office format support. The interface is available in 32 languages, including Czech, German, and Greek.

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

Online document viewing
Download interception
Office format support
Document downloads
Browser integration

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sept · 11:17 UTC
Office Web verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Office Web

What does Office Web do?: Office Web focuses on viewing office documents in a browser without downloading them to a local office application. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Office Web?: Office Web is a consumer product built for firefox users who need to view office documents online.
Is Office Web free?: Yes — Office Web is free to use.
What platforms does Office Web run on?: Office Web runs on the web and embeddable surfaces.
Is Office Web still active?: Unverified. Office Web 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 Office Web?: Similar projects tracked by PulseGate include Online Docs Viewer, DOCX Viewer, and WebPDF.Online Docs Viewer DOCX Viewer WebPDF
Who develops Office Web?: Office Web is developed by Houbo.
How long has Office Web been around?: Office Web first shipped in 2022.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who need to view office documents online
Model: B2C
Solves: Viewing office documents in a browser without downloading them to a local office application.

Registered as

Firefox Add-ons: office-web

Developer

Houbo

Index record

Indexed: 12 Sept 2026
Lifecycle: Alive
Last seen: 12 Sept 2026

Identity audit (13)

Slug: office-web-mozilla-org
Lifecycle state recorded: 12 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 12 Sept 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: 12 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/office-web

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