Chrome Web StoreCaution required
Suspicious in code review (v5.2.7)
Our reviewer found behaviour consistent with malware in version 5.2.7, but not enough to confirm it. Treat this extension as untrusted until it has been re-reviewed.
What our analysis found
Equalizer for Browser, used by 10,000 people, is rated caution by Extension Auditor. Our code review reported 2 findings (1 high, 1 medium), led by other. It comes from a trusted publisher and was last updated in October 2026.
Key findings
- High
Other
The bundled manifest declares four permissions (tabCapture, tabs, storage, offscreen), but the CWS-published manifest summary shows only two (tabCapture, storage). The `tabs` and `offscreen` permissions are entirely absent from the live store listing, meaning users and enterprise reviewers evaluating the extension's scope from the store page do not see the full declared permissions. Per review policy, any mismatch in permissions between the bundled and published manifests is itself a required finding.
- Medium
Other
On every install AND every subsequent update the extension opens [domain withheld] in a new active foreground tab without any user interaction. This domain is a third-party site with no relation to the publisher's own [domain withheld] domain. Because the trigger fires on `UPDATE` as well as `INSTALL`, users are subjected to this unsolicited redirect each time the extension auto-updates, not merely on first install — a pattern common to low-quality monetized extensions from publishers whose other extensions are flagged as malicious.
Analyst notes
The audio equalizer core (tabCapture→offscreen audio processing pipeline via Web Audio API) is technically legitimate and directly matches the stated purpose; shows a clean 10-band EQ with — no data exfiltration, no remote code loading, no credential theft. However, two concrete code-level issues raise suspicion: fires `chrome.tabs.create({url:'[domain withheld]'})` on BOTH install AND update, a third-party monetization redirect unrelated to the publisher's [domain withheld] domain; and the bundled manifest declares `tabs` and `offscreen` permissions that are absent from the CWS-published listing. The terrible publisher reputation ( sibling extensions flagged malicious, 61% of the same-permission cluster flagged) strongly corroborates a monetization-focused operator pattern, while the low ML (0.13) and third-party () scores are consistent with functional-but-ad-redirecting code rather than covert spyware.
Equalizer for Browser Chrome extension security report
ID: bjfmipfconpcacjaaijfbdkjciakjmea
Supported Languages
Extension Info & Metadata
Publisher Contextual Analysis
- Author
- cusmize.com
- Privacy
- Privacy Policy
- Help
- Help Center
- MX records exist
- Yes
- Domain exists
- Yes
- Is disposable
- No
- Is role-based
- No
- Mailbox exists
- Yes
- Website
- Visit
Screenshots & videos
Install growth
About this extension
Change your audio with our equalizer. Increase volume and adjust sound easily for a better experience.
Read the publisher’s full description
The Audio Equalizer allowing you to fine-tune and perfect your sound. This bass booster and sound modifier lets you adjust the balance of various frequency components with its 10-band controls. With a range of settings and outstanding sound customization, the Audio Equalizer ensures that the audio output is tailored to your preferences. Elevate your listening with the features of the Audio EQ. Create a surround sound effect, boost the bass, or increase the volume on your device. The Audio Equalizer enables you to effortlessly adjust the levels of different frequencies in the audio stream. On top of the excellent equalization and bass booster features, the Audio Equalizer comes packed with a myriad of other functions that will astonish you. ⚡Key features of our Audio Equalizer include: - Preamp volume controls to further enhance audio output; - 10 meticulously designed bands for optimal sound adjustment; - A choice of 21 ready-to-play presets; - Efficient performance with minimal CPU usage; - Flexibility with the gain/suppression of frequency on each band, ranging from +/- 12 dB; - An entirely free equalizer extension, adding value without a price tag. ⚡Dive into our range of presets that cater to every listener: - Acoustic for the purists; - Classical for the aficionados; - Dance for those who want to groove; - Electronic for the modern beat lovers; - Hip-Hop for the rhythm enthusiasts; - Lounge for relaxation; - Pop for the mainstream listeners; - Rock for the rebellious souls; - Small Speakers to get the most out of limited hardware; - And an array of other presets to explore and enjoy. With the Audio Equalizer, it's not just about listening; it's about experiencing sound like never before.
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Extension files
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