DjVu.js Viewer Plus Firefox

DjVu.js Viewer Plus

By: Nohu
Opens links to .djvu files. Allows opening files from a local disk. Processes & tags.

Features & Capabilities

The extension collects NO DATA at all. It's completely autonomous (no internet connection required to open a file). It requires access to third-party websites only to render embedded documents (<embed> tag) and open links to .djvu files (on any website).

The extension, by and large, is a local copy of the DjVu.js Viewer which is available on https://djvu.js.org/.

It allows you to open links to the files right in the browser (via context menu) and the files from a local drive (after you open a page with the viewer you can choose a file). Also, in case of an indirect (multi-file) document you can bundle it into one file via the extension. Furthermore, it processes <embed> and <object> tags and replaces them with the viewer. So the extension may be, in a sense, a substitution of the Cuminas' native DjVu plug-in.

Since all operations are performed on your machine, the extension can work without an Internet connection.

The Google Chrome version of the extension allows to open local files by a browser directly (via a double-click)! But you have to enable the "Allow access to file URLs", option on the extension's options page. Otherwise, the new feature won't work. Also, the browser should have been already started by the moment you try to open a file.

All source code is available on https://github.com/RussCoder/djvujs

The extension is based on DjVu.js - the library which allows to process the files right in the browser. The library is still being developed, so there may be some bugs. If you have a document which is incorrectly opened with the extension, I will appreciate a lot, if you send the problem file to me at djvujs@yandex.ru - if you do it, I will be able to fix bugs and improve the library, which is an open source project.

User Growth & Download Statistics

Manifest V2 Add-on
By:
Nohu
Daily users:
57 -1
Rating:
5.00
(1)
Version:
0.10.1.0 Last updated: 2025-02-04
Version code:
5886550
Creation date:
2025-02-04
Risk:
High risk impact Low risk likelihood
Permissions:
Content scripts matches:
  • *
Size:
250.89KB
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-10
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:
Nohu
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/djvu-js-viewer-plus/

Is DjVu.js Viewer Plus 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.

DjVu.js Viewer Plus requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • 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.

DjVu.js Viewer Plus has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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