JShelter

Extension for increasing security and privacy level of the user.

What is JShelter?

JShelter is a Chrome extension developed by nesatfit, and its main feature is "Extension for increasing security and privacy level of the user.".

Extension Screenshots

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Download JShelter Extension CRX File

Download JShelter extension files in crx format, manually install Chrome extensions in the browser, or share the crx files with friends to easily install Chrome extensions.

Extension Usage Instructions

                        What is JShelter?

JShelter is a browser extension to give back control over what your browser is doing. A JavaScript-enabled web page can access much of the browser's functionality, with little control over this process available to the user: malicious websites can uniquely identify you through fingerprinting and use other tactics for tracking your activity. JShelter aims to improve the privacy and security of your web browsing.

How does it work?

Like a firewall that controls network connections, JShelter controls the APIs provided by the browser, restricting the data that they gather and send out to websites. JShelter adds a safety layer that allows the user to choose if a certain action should be forbidden on a site, or if it should be allowed with restrictions, such as reducing the precision of geolocation to the city area. This layer can also aid as a countermeasure against attacks targeting the browser, operating system or hardware.

Please see the FAQ (https://jshelter.org/faq/) and our blog (https://jshelter.org/blog/) for more information about the extension.

What is the threat model?

https://jshelter.org/threatmodel/

Can I read a paper about the extension?

Yes, see https://arxiv.org/abs/2204.01392                    

Extension Basic Information

Name JShelter JShelter
ID ammoloihpcbognfddfjcljgembpibcmb
Official URL https://chromewebstore.google.com/detail/jshelter/ammoloihpcbognfddfjcljgembpibcmb
Description Extension for increasing security and privacy level of the user.
File Size 435 KB
Installation Count 3,822
Current Version 0.17
Last Updated 2023-11-04
Publish Date 2020-06-22
Rating 4.50/5 Total 20 Ratings
Developer nesatfit
Email [email protected]
Payment Type free
Extension Website https://jshelter.org/
Help Page URL https://pagure.io/JShelter/webextension/issues
Supported Languages en,cs,ru
manifest.json
{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "author": "Libor Pol\u010d\u00e1k, Giorgio Maone, Martin Timko, Pavel Pohner, Peter Hor\u0148\u00e1k, Mat\u00fa\u0161 \u0160vanc\u00e1r, Marek Salo\u0148, Martin Bedn\u00e1\u0159, Radek Hranick\u00fd, Martin Zmitko",
    "background": {
        "scripts": [
            "nscl\/lib\/browser-polyfill.js",
            "lib\/sha256.js",
            "nscl\/common\/log.js",
            "nscl\/common\/uuid.js",
            "nscl\/common\/SyncMessage.js",
            "nscl\/common\/tld.js",
            "nscl\/service\/DocStartInjection.js",
            "nscl\/service\/TabCache.js",
            "nscl\/service\/NavCache.js",
            "helpers.js",
            "session_hash.js",
            "update.js",
            "url.js",
            "settings_tweaks.js",
            "levels.js",
            "fp_levels.js",
            "fp_detect_background.js",
            "background.js",
            "level_cache.js",
            "http_shield_chrome.js",
            "http_shield_common.js"
        ],
        "persistent": true
    },
    "browser_action": {
        "default_icon": {
            "16": "img\/icon-16.png",
            "32": "img\/icon-32.png",
            "48": "img\/icon-48.png",
            "64": "img\/icon-64.png",
            "96": "img\/icon-96.png",
            "128": "img\/icon-128.png",
            "256": "img\/icon-256.png",
            "512": "img\/icon-512.png"
        },
        "default_title": "JShelter",
        "default_popup": "popup.html"
    },
    "content_scripts": [
        {
            "matches": [
                ""
            ],
            "all_frames": true,
            "match_about_blank": true,
            "match_origin_as_fallback": true,
            "js": [
                "nscl\/lib\/browser-polyfill.js",
                "nscl\/common\/uuid.js",
                "nscl\/common\/SyncMessage.js",
                "nscl\/content\/patchWindow.js",
                "lib\/sha256.js",
                "alea.js",
                "crc16.js",
                "helpers.js",
                "wrapping.js",
                "wrappingL-CANVAS.js",
                "wrappingL-SENSOR.js",
                "wrappingS-AJAX.js",
                "wrappingS-BATTERY-CR.js",
                "wrappingS-BE.js",
                "wrappingS-COOP-SCHEDULING.js",
                "wrappingS-DM.js",
                "wrappingS-DOM.js",
                "wrappingS-ECMA-ARRAY.js",
                "wrappingS-ECMA-DATE.js",
                "wrappingS-ECMA-SHARED.js",
                "wrappingS-EME.js",
                "wrappingS-GEO.js",
                "wrappingS-GP.js",
                "wrappingS-H-C.js",
                "wrappingS-HRT.js",
                "wrappingS-HTML.js",
                "wrappingS-HTML-LS.js",
                "wrappingS-HTML5.js",
                "wrappingS-IDLE.js",
                "wrappingS-MCS.js",
                "wrappingS-MEDIA-CAPABILITIES.js",
                "wrappingS-NET.js",
                "wrappingS-NFC.js",
                "wrappingS-NP.js",
                "wrappingS-PT2.js",
                "wrappingS-SENSOR-ACCEL.js",
                "wrappingS-SENSOR-GYRO.js",
                "wrappingS-SENSOR.js",
                "wrappingS-SENSOR-LIGHT.js",
                "wrappingS-SENSOR-MAGNET.js",
                "wrappingS-SENSOR-ORIENT.js",
                "wrappingS-VR.js",
                "wrappingS-WEBA.js",
                "wrappingS-WEBGL.js",
                "wrappingS-XR.js",
                "code_builders.js",
                "fp_code_builders.js",
                "document_start.js"
            ],
            "run_at": "document_start"
        }
    ],
    "default_locale": "en",
    "description": "__MSG_extensionDescription__",
    "homepage_url": "https:\/\/JShelter.org",
    "icons": {
        "16": "img\/icon-16.png",
        "32": "img\/icon-32.png",
        "48": "img\/icon-48.png",
        "64": "img\/icon-64.png",
        "96": "img\/icon-96.png",
        "128": "img\/icon-128.png",
        "256": "img\/icon-256.png",
        "512": "img\/icon-512.png"
    },
    "web_accessible_resources": [
        "farble.wasm"
    ],
    "manifest_version": 2,
    "name": "__MSG_extensionName__",
    "options_page": "options.html",
    "content_security_policy": "default-src 'none'; script-src 'self'; connect-src 'self'; img-src 'self' data:; style-src 'self';base-uri 'self';form-action 'self'",
    "permissions": [
        "storage",
        "tabs",
        "webRequest",
        "webRequestBlocking",
        "webNavigation",
        "",
        "notifications"
    ],
    "optional_permissions": [
        "browsingData"
    ],
    "short_name": "JShelter",
    "version": "0.17"
}