Firefox Add-ons

4Versions

0Code reviewed

Not reviewed

No code review on record

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What our analysis found

AdGuard Browser Assistant, used by 12,564 people, is not yet reviewed by Extension Auditor. Its permissions mean it can inject scripts into pages. It comes from a trusted publisher and was last updated in August 2025.

AdGuard Browser Assistant Firefox extension security report

ID: adguard-browser-assistant

Extension Info & Metadata

Status

Active

Version

1.4.8

Size

1.60 MB

Rating

4.8/5

Reviews

167

Users

12,564

Type

Extension

Updated

Aug 11, 2025

Publisher Contextual Analysis

Trusted

Author: Adguard Software Ltd
Privacy: Privacy Policy
Country: CY
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: Yes
Mailbox exists: Yes
Address: Andrea Zakou, Limassol Centre C, office 34 Limassol 3095 CY
Website: Visit

Extensions

Active

Obsolete

Listed

Unlisted

Users

3,574,536

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Screenshots & videos

Install growth

User Growth

Showing data from Sep 13, 2023 to Sep 12, 2024

Versions

-4.4%(-588 users)

Compared to 3 months ago

3 versions released in this period

Rating Count

Total: 130 ratings+1 (1%)

Average Rating

Current: 4.72 / 5.0-0.05

See plans

React Flow

Internal permhash`55274561bd…`
No malicious matches

9 other extensions carry this fingerprint, none of them known malicious.

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+2 more

Permhash (Mandiant)`342979f6cd…`
No malicious matches

4 other extensions carry this fingerprint, none of them known malicious.

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Network indicators

79 URLs and 1 IP literals were extracted from this version.

Item	Type	Severity	Description
scripting	Permission	Critical	This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
nativeMessaging	Permission	High	This permission enables communication with applications installed on your computer. Rated High because it can exchange data with native programs, potentially exposing system-level information and local files.
tabs	Permission	Medium	This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
activeTab	Permission	Medium	This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
storage	Permission	Medium	This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
contextMenus	Permission	Low	This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.

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About this extension

Extension for the AdGuard desktop app. Manages filtering right from the browser, hides annoying elements in two clicks.

User reviews

4.5 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

Вроде неплохо, но в последнее время приложение через раз запускается при включении. В настройках галочка "Запускать при старте" стоит, проверила, в Автозагрузке программа есть, но программа то запустится с системой, то нет. Причем, если сразу не запустилась, то через браузер (Firefox) не запускается, надо включать через приложение. Проверьте, пожалуйста, что не так с запуском в Firefox. Антивирус у меня системный, если что.

Lise·19 Jul 2026

Adguard ürünlerini severek kullanıyroum, hatta ömür boyu lisansım da var ama bu uzantı çalışmıyor. Zen browser'dan deniyorum. Zen filtrelenen uygulamalara ekli ama yine de ekleyin diyor ve tarayıcı eklentisini açmıyor.

Firefox user 19819105·30 Mar 2026

Browser Assistant makes managing the power of the Desktop app a lot easier without the bloat of the weaker AdGuard chrome-only extension. Only download this if you're using the AdGuard Desktop app!

Extension files

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URLs

IPv4

URLs

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No IP addresses found

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Version	Size	Verdict	Findings	Permhash
1.3.36 Latest	1.50 MB	Not scanned	—	9bd3ffbd75b53a79a218805df5c0ba7c93436752491d286ab3b8d961f5d0d45d
1.3.40	1.49 MB	Not scanned	—	9bd3ffbd75b53a79a218805df5c0ba7c93436752491d286ab3b8d961f5d0d45d
1.4.1	1.49 MB	Not scanned	—	342979f6cd28aa30c482140bad21605ac602a0da1ef9d674e3069db0001a6f4a
1.4.8	1.60 MB	Not scanned	—	342979f6cd28aa30c482140bad21605ac602a0da1ef9d674e3069db0001a6f4a

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Code Diff

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Not reviewed

What our analysis found