JSON Viewer Pro Firefox

JSON Viewer Pro

Select JSON text on any page, right-click, and view it in an interactive tree or syntax-highlighted formatted view — with search, expand/collapse, and one-click copy. No data collection, no network requests.
xHeader
Modify request and response headers. No ads, no malware.

Features & Capabilities

View JSON instantly, right from any webpage — no copy-pasting into external tools.

Features

• Tree View: interactive hierarchical view with expand/collapse for every node • Formatted View: syntax-highlighted JSON with line numbers • Search: find keys and values with match-case and exact-word options, plus next/previous navigation (Ctrl+F) • Expand All / Collapse All with one click • Copy anything: the full formatted JSON, or click any key or value in the tree to copy just that • Stats at a glance: item/key counts for the loaded JSON

How to use

  1. Select JSON text on any webpage
  2. Right-click the selection
  3. Click "View JSON"
  4. Explore the tree or formatted view
Privacy

No data collection, no analytics, no network requests. Your selected JSON is stored only in local extension storage on your device, just long enough to display it.

User Growth & Download Statistics

Manifest V3 Add-on
By:
Vishwajeet
Daily users:
3 1
Rating:
5.00
(1)
Version:
2.1.1 Last updated: 2026-08-06
Version code:
6391774
Creation date:
2026-08-03
Risk:
Very low risk impact High risk likelihood
Permissions:
Size:
39.11KB
Email:
ju*****@gmail.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-08-26
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:
Vishwajeet
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/json-viewer-tree-view-pro/
Email:
ju*****@gmail.com
Website:
https://vishwajeetsingh.great-site.net/

User Reviews

cool extension, try it once
by Fi*****, 2026-08-06
View all user reviews ›

Is JSON Viewer Pro 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.

JSON Viewer Pro does not require any sensitive permissions.

Risk impact analysis details
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.

JSON Viewer Pro is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

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